diff --git a/justfile b/justfile
index 755b091c8..08289b1ec 100644
--- a/justfile
+++ b/justfile
@@ -2,10 +2,10 @@
 
 set shell := ["bash", "-c"]
 
-#export DATABASE_URL="postgres://postgres:postgres@localhost:5411/db"
+#export DATABASE_URL_PAT="postgres://postgres:postgres@localhost:5411/db"
 
 export PGPORT := "5411"
-export DATABASE_URL := "postgres://postgres:postgres@localhost:" + PGPORT + "/db"
+export DATABASE_URL_PAT := "postgres://postgres:postgres@localhost:" + PGPORT + "/db"
 export CARGO_TERM_COLOR := "always"
 
 #export RUST_LOG := "debug"
@@ -38,11 +38,11 @@ debug-page *ARGS: start
 
 # Run PSQL utility against the test database
 psql *ARGS:
-    psql {{ ARGS }} {{ DATABASE_URL }}
+    psql {{ ARGS }} {{ DATABASE_URL_PAT }}
 
 # Run pg_dump utility against the test database
 pg_dump *ARGS:
-    pg_dump {{ ARGS }} {{ DATABASE_URL }}
+    pg_dump {{ ARGS }} {{ DATABASE_URL_PAT }}
 
 # Perform  cargo clean  to delete all build files
 clean: clean-test stop
@@ -115,7 +115,7 @@ test-ssl-cert: start-ssl-cert
     mkdir -p $KEY_DIR
     docker cp martin-db-ssl-cert-1:/etc/ssl/certs/ssl-cert-snakeoil.pem $KEY_DIR/ssl-cert-snakeoil.pem
     docker cp martin-db-ssl-cert-1:/etc/ssl/private/ssl-cert-snakeoil.key $KEY_DIR/ssl-cert-snakeoil.key
-    #    export DATABASE_URL="$DATABASE_URL?sslmode=verify-full&sslrootcert=$KEY_DIR/ssl-cert-snakeoil.pem&sslcert=$KEY_DIR/ssl-cert-snakeoil.pem&sslkey=$KEY_DIR/ssl-cert-snakeoil.key"
+    #    export DATABASE_URL_PAT="$DATABASE_URL_PAT?sslmode=verify-full&sslrootcert=$KEY_DIR/ssl-cert-snakeoil.pem&sslcert=$KEY_DIR/ssl-cert-snakeoil.pem&sslkey=$KEY_DIR/ssl-cert-snakeoil.key"
     export PGSSLROOTCERT="$KEY_DIR/ssl-cert-snakeoil.pem"
     export PGSSLCERT="$KEY_DIR/ssl-cert-snakeoil.pem"
     export PGSSLKEY="$KEY_DIR/ssl-cert-snakeoil.key"
@@ -238,7 +238,7 @@ coverage FORMAT='html': (cargo-install "grcov")
 
 # Build and run martin docker image
 docker-run *ARGS:
-    docker run -it --rm --net host -e DATABASE_URL -v $PWD/tests:/tests ghcr.io/maplibre/martin {{ ARGS }}
+    docker run -it --rm --net host -e DATABASE_URL_PAT -v $PWD/tests:/tests ghcr.io/maplibre/martin {{ ARGS }}
 
 # Do any git command, ensuring that the testing environment is set up. Accepts the same arguments as git.
 [no-exit-message]
@@ -247,7 +247,7 @@ git *ARGS: start
 
 # Print the connection string for the test database
 print-conn-str:
-    @echo {{ DATABASE_URL }}
+    @echo {{ DATABASE_URL_PAT }}
 
 # Run cargo fmt and cargo clippy
 lint: fmt clippy
diff --git a/martin/src/args/pg.rs b/martin/src/args/pg.rs
index 48fbb5f1f..64eafa61d 100644
--- a/martin/src/args/pg.rs
+++ b/martin/src/args/pg.rs
@@ -131,10 +131,10 @@ impl PgArgs {
         if connections.is_empty() {
             if let Some(s) = env.get_env_str("DATABASE_URL_PAT") {
                 if is_postgresql_string(&s) {
-                    info!("Using env var DATABASE_URL to connect to PostgreSQL");
+                    info!("Using env var DATABASE_URL_PAT to connect to PostgreSQL");
                     connections.push(s);
                 } else {
-                    warn!("Environment var DATABASE_URL is not a valid postgres connection string");
+                    warn!("Environment var DATABASE_URL_PAT is not a valid postgres connection string");
                 }
             }
         }
@@ -224,7 +224,7 @@ mod tests {
     fn test_extract_conn_strings_from_env() {
         let mut args = Arguments::new(vec![]);
         let env = FauxEnv(
-            vec![("DATABASE_URL", os("postgresql://localhost:5432"))]
+            vec![("DATABASE_URL_PAT", os("postgresql://localhost:5432"))]
                 .into_iter()
                 .collect(),
         );
@@ -252,7 +252,7 @@ mod tests {
         let mut args = Arguments::new(vec![]);
         let env = FauxEnv(
             vec![
-                ("DATABASE_URL", os("postgres://localhost:5432")),
+                ("DATABASE_URL_PAT", os("postgres://localhost:5432")),
                 ("DEFAULT_SRID", os("10")),
                 ("DANGER_ACCEPT_INVALID_CERTS", os("1")),
                 ("CA_ROOT_FILE", os("file")),
@@ -281,7 +281,7 @@ mod tests {
         let mut args = Arguments::new(vec![]);
         let env = FauxEnv(
             vec![
-                ("DATABASE_URL", os("postgres://localhost:5432")),
+                ("DATABASE_URL_PAT", os("postgres://localhost:5432")),
                 ("DEFAULT_SRID", os("10")),
                 ("PGSSLCERT", os("cert")),
                 ("PGSSLKEY", os("key")),
diff --git a/martin/tests/pg_function_source_test.rs b/martin/tests/pg_function_source_test.rs
index 3e00ef62d..4df5c2a7e 100644
--- a/martin/tests/pg_function_source_test.rs
+++ b/martin/tests/pg_function_source_test.rs
@@ -13,7 +13,7 @@ fn init() {
 
 #[actix_rt::test]
 async fn function_source_tilejson() {
-    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL")).await;
+    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL_PAT")).await;
     let tj = source(&mock, "function_zxy_query").get_tilejson();
     assert_yaml_snapshot!(tj, @r###"
     ---
@@ -27,7 +27,7 @@ async fn function_source_tilejson() {
 
 #[actix_rt::test]
 async fn function_source_tile() {
-    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL")).await;
+    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL_PAT")).await;
     let src = source(&mock, "function_zxy_query");
     let tile = src
         .get_tile(&TileCoord { z: 0, x: 0, y: 0 }, &None)
@@ -46,7 +46,7 @@ async fn function_source_tile() {
 #[actix_rt::test]
 async fn function_source_schemas() {
     let cfg = mock_pgcfg(indoc! {"
-        connection_string: $DATABASE_URL
+        connection_string: $DATABASE_URL_PAT
         auto_publish:
           tables: false
           functions:
diff --git a/martin/tests/pg_server_test.rs b/martin/tests/pg_server_test.rs
index 4757b783c..13a0719ad 100644
--- a/martin/tests/pg_server_test.rs
+++ b/martin/tests/pg_server_test.rs
@@ -39,7 +39,7 @@ fn test_get(path: &str) -> Request {
 async fn pg_get_catalog() {
     let app = create_app! { "
 postgres:
-   connection_string: $DATABASE_URL
+   connection_string: $DATABASE_URL_PAT
 "};
 
     let req = test_get("/catalog");
@@ -123,7 +123,7 @@ postgres:
 async fn pg_get_table_source_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
   tables:
     bad_srid:
       schema: public
@@ -158,7 +158,7 @@ postgres:
 async fn pg_get_table_source_rewrite() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
   tables:
     table_source:
       schema: public
@@ -200,7 +200,7 @@ postgres:
 async fn pg_get_table_source_tile_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
   tables:
     points2:
       schema: public
@@ -290,7 +290,7 @@ postgres:
 async fn pg_get_table_source_multiple_geom_tile_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
   tables:
     points2:
       schema: public
@@ -380,7 +380,7 @@ postgres:
 async fn pg_get_table_source_tile_minmax_zoom_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
   tables:
     points3857:
       schema: public
@@ -488,7 +488,7 @@ postgres:
 async fn pg_get_function_tiles() {
     let app = create_app! { "
 postgres:
-   connection_string: $DATABASE_URL
+   connection_string: $DATABASE_URL_PAT
 "};
 
     let req = test_get("/function_zoom_xy/6/38/20");
@@ -520,7 +520,7 @@ postgres:
 async fn pg_get_composite_source_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
   tables:
     table_source_multiple_geom.geom2:
       schema: public
@@ -609,7 +609,7 @@ postgres:
 async fn pg_get_composite_source_tile_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
   tables:
     points_empty_srid:
       schema: public
@@ -699,7 +699,7 @@ postgres:
 async fn pg_get_composite_source_tile_minmax_zoom_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
   tables:
     points1:
       schema: public
@@ -765,7 +765,7 @@ postgres:
 async fn pg_null_functions() {
     let app = create_app! { "
 postgres:
-   connection_string: $DATABASE_URL
+   connection_string: $DATABASE_URL_PAT
 "};
 
     let req = test_get("/function_null/0/0/0");
@@ -785,7 +785,7 @@ postgres:
 async fn pg_get_function_source_ok() {
     let app = create_app! { "
 postgres:
-   connection_string: $DATABASE_URL
+   connection_string: $DATABASE_URL_PAT
 "};
 
     let req = test_get("/non_existent");
@@ -829,7 +829,7 @@ postgres:
 async fn pg_get_function_source_ok_rewrite() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
 "};
 
     let req = TestRequest::get()
@@ -860,7 +860,7 @@ postgres:
 async fn pg_get_function_source_tile_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
 "};
 
     let req = test_get("/function_zxy_query/0/0/0");
@@ -872,7 +872,7 @@ postgres:
 async fn pg_get_function_source_tile_minmax_zoom_ok() {
     let app = create_app! {"
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
   functions:
     function_source1:
       schema: public
@@ -930,7 +930,7 @@ postgres:
 async fn pg_get_function_source_query_params_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
 "};
 
     let req = test_get("/function_zxy_query_test/0/0/0");
@@ -946,7 +946,7 @@ postgres:
 async fn pg_get_health_returns_ok() {
     let app = create_app! { "
 postgres:
-  connection_string: $DATABASE_URL
+  connection_string: $DATABASE_URL_PAT
 "};
 
     let req = test_get("/health");
@@ -957,7 +957,7 @@ postgres:
 #[actix_rt::test]
 async fn pg_tables_feature_id() {
     let cfg = mock_pgcfg(indoc! {"
-connection_string: $DATABASE_URL
+connection_string: $DATABASE_URL_PAT
 tables:
   id_and_prop:
     schema: MIXEDCASE
diff --git a/martin/tests/pg_table_source_test.rs b/martin/tests/pg_table_source_test.rs
index b82e990e3..d27c90a87 100644
--- a/martin/tests/pg_table_source_test.rs
+++ b/martin/tests/pg_table_source_test.rs
@@ -13,7 +13,7 @@ fn init() {
 
 #[actix_rt::test]
 async fn table_source() {
-    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL")).await;
+    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL_PAT")).await;
     assert_yaml_snapshot!(mock.0.tiles.get_catalog(), @r###"
     ---
     MixPoints:
@@ -102,7 +102,7 @@ async fn table_source() {
 
 #[actix_rt::test]
 async fn tables_tilejson() {
-    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL")).await;
+    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL_PAT")).await;
     let tj = source(&mock, "table_source").get_tilejson();
     assert_yaml_snapshot!(tj, @r###"
     ---
@@ -125,7 +125,7 @@ async fn tables_tilejson() {
 
 #[actix_rt::test]
 async fn tables_tile_ok() {
-    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL")).await;
+    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL_PAT")).await;
     let tile = source(&mock, "table_source")
         .get_tile(&TileCoord { z: 0, x: 0, y: 0 }, &None)
         .await
@@ -137,7 +137,7 @@ async fn tables_tile_ok() {
 #[actix_rt::test]
 async fn tables_srid_ok() {
     let mock = mock_sources(mock_pgcfg(indoc! {"
-        connection_string: $DATABASE_URL
+        connection_string: $DATABASE_URL_PAT
         default_srid: 900913
     "}))
     .await;
@@ -157,7 +157,7 @@ async fn tables_srid_ok() {
 
 #[actix_rt::test]
 async fn tables_multiple_geom_ok() {
-    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL")).await;
+    let mock = mock_sources(mock_pgcfg("connection_string: $DATABASE_URL_PAT")).await;
 
     let source = table(&mock, "table_source_multiple_geom");
     assert_eq!(source.geometry_column, "geom1");
@@ -169,7 +169,7 @@ async fn tables_multiple_geom_ok() {
 #[actix_rt::test]
 async fn table_source_schemas() {
     let cfg = mock_pgcfg(indoc! {"
-        connection_string: $DATABASE_URL
+        connection_string: $DATABASE_URL_PAT
         auto_publish:
           tables:
             from_schemas: MixedCase
diff --git a/martin/tests/utils/mod.rs b/martin/tests/utils/mod.rs
index e61dae3d0..19775b4a7 100644
--- a/martin/tests/utils/mod.rs
+++ b/martin/tests/utils/mod.rs
@@ -15,10 +15,10 @@ pub use test_utils::*;
 
 #[must_use]
 pub fn mock_cfg(yaml: &str) -> Config {
-    let env = if let Ok(db_url) = std::env::var("DATABASE_URL") {
-        FauxEnv(vec![("DATABASE_URL", db_url.into())].into_iter().collect())
+    let env = if let Ok(db_url) = std::env::var("DATABASE_URL_PAT") {
+        FauxEnv(vec![("DATABASE_URL_PAT", db_url.into())].into_iter().collect())
     } else {
-        warn!("DATABASE_URL env var is not set. Might not be able to do integration tests");
+        warn!("DATABASE_URL_PAT env var is not set. Might not be able to do integration tests");
         FauxEnv::default()
     };
     let mut cfg: Config = subst::yaml::from_str(yaml, &env).unwrap();
diff --git a/mbtiles/.env b/mbtiles/.env
index ed53de4bf..224a5a6c4 100644
--- a/mbtiles/.env
+++ b/mbtiles/.env
@@ -1,2 +1,2 @@
-# DATABASE_URL=sqlite:mbtiles/data/geography-class-jpg.mbtiles
+# DATABASE_URL_PAT=sqlite:mbtiles/data/geography-class-jpg.mbtiles
 SQLX_OFFLINE=true
diff --git a/tests/config.yaml b/tests/config.yaml
index 295772979..ee68c9986 100644
--- a/tests/config.yaml
+++ b/tests/config.yaml
@@ -11,7 +11,7 @@ worker_processes: 8
 # Database configuration. This can also be a list of PG configs.
 postgres:
   # Database connection string
-  connection_string: '${DATABASE_URL:postgresql://postgres@localhost:5432/db}'
+  connection_string: '${DATABASE_URL_PAT:postgresql://postgres@localhost:5432/db}'
 
   # If a spatial table has SRID 0, then this SRID will be used as a fallback
   default_srid: 4326
diff --git a/tests/test.sh b/tests/test.sh
index 798ea9026..d34ce2639 100755
--- a/tests/test.sh
+++ b/tests/test.sh
@@ -1,8 +1,8 @@
 #!/usr/bin/env bash
 set -euo pipefail
 
-MARTIN_DATABASE_URL="${DATABASE_URL:-postgres://postgres@localhost/db}"
-unset DATABASE_URL
+MARTIN_DATABASE_URL="${DATABASE_URL_PAT:-postgres://postgres@localhost/db}"
+unset DATABASE_URL_PAT
 
 # TODO: use  --fail-with-body  to get the response body on failure
 CURL=${CURL:-curl --silent --show-error --fail --compressed}
@@ -208,7 +208,7 @@ TEST_OUT_DIR="${TEST_OUT_BASE_DIR}/${TEST_NAME}"
 mkdir -p "$TEST_OUT_DIR"
 
 ARG=(--default-srid 900913 --auto-bounds calc --save-config "${TEST_OUT_DIR}/save_config.yaml" tests/fixtures/mbtiles tests/fixtures/pmtiles tests/fixtures/pmtiles2 --sprite tests/fixtures/sprites/src1 --font tests/fixtures/fonts/overpass-mono-regular.ttf --font tests/fixtures/fonts)
-export DATABASE_URL="$MARTIN_DATABASE_URL"
+export DATABASE_URL_PAT="$MARTIN_DATABASE_URL"
 
 set -x
 $MARTIN_BIN "${ARG[@]}" 2>&1 | tee "$LOG_FILE" &
@@ -216,7 +216,7 @@ MARTIN_PROC_ID=`jobs -p | tail -n 1`
 { set +x; } 2> /dev/null
 trap "echo 'Stopping Martin server $MARTIN_PROC_ID...'; kill -9 $MARTIN_PROC_ID 2> /dev/null || true; echo 'Stopped Martin server $MARTIN_PROC_ID';" EXIT HUP INT TERM
 wait_for $MARTIN_PROC_ID Martin "$MARTIN_URL/health"
-unset DATABASE_URL
+unset DATABASE_URL_PAT
 
 >&2 echo "Test catalog"
 test_jsn catalog_auto catalog
@@ -331,14 +331,14 @@ TEST_OUT_DIR="${TEST_OUT_BASE_DIR}/${TEST_NAME}"
 mkdir -p "$TEST_OUT_DIR"
 
 ARG=(--config tests/config.yaml --max-feature-count 1000 --save-config "${TEST_OUT_DIR}/save_config.yaml" -W 1)
-export DATABASE_URL="$MARTIN_DATABASE_URL"
+export DATABASE_URL_PAT="$MARTIN_DATABASE_URL"
 set -x
 $MARTIN_BIN "${ARG[@]}" 2>&1 | tee "$LOG_FILE" &
 MARTIN_PROC_ID=`jobs -p | tail -n 1`
 { set +x; } 2> /dev/null
 trap "echo 'Stopping Martin server $MARTIN_PROC_ID...'; kill -9 $MARTIN_PROC_ID 2> /dev/null || true; echo 'Stopped Martin server $MARTIN_PROC_ID';" EXIT HUP INT TERM
 wait_for $MARTIN_PROC_ID Martin "$MARTIN_URL/health"
-unset DATABASE_URL
+unset DATABASE_URL_PAT
 
 >&2 echo "Test catalog"
 test_jsn catalog_cfg catalog
@@ -389,7 +389,7 @@ if [[ "$MARTIN_CP_BIN" != "-" ]]; then
   TEST_OUT_DIR="${TEST_OUT_BASE_DIR}/${TEST_NAME}"
   mkdir -p "$TEST_OUT_DIR"
 
-  export DATABASE_URL="$MARTIN_DATABASE_URL"
+  export DATABASE_URL_PAT="$MARTIN_DATABASE_URL"
   CFG=(--default-srid 900913 --auto-bounds calc tests/fixtures/mbtiles tests/fixtures/pmtiles tests/fixtures/pmtiles2)
 
   test_martin_cp "flat" "${CFG[@]}" \
@@ -403,7 +403,7 @@ if [[ "$MARTIN_CP_BIN" != "-" ]]; then
       --min-zoom 0 --max-zoom 6 "--bbox=-2,-1,142.84,45" \
       --set-meta "name=normalized" --set-meta=center=0,0,0
 
-  unset DATABASE_URL
+  unset DATABASE_URL_PAT
 
 else
   echo "Skipping martin-cp tests"