diff --git a/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/StoragePluginModule.scala b/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/StoragePluginModule.scala
index 8759b26549..4ebc90d8b1 100644
--- a/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/StoragePluginModule.scala
+++ b/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/StoragePluginModule.scala
@@ -1,7 +1,7 @@
 package ch.epfl.bluebrain.nexus.delta.plugins.storage
 
 import akka.actor.typed.ActorSystem
-import akka.http.scaladsl.model.Uri
+import akka.http.scaladsl.model.Uri.Path
 import cats.effect.{Clock, IO}
 import ch.epfl.bluebrain.nexus.delta.kernel.utils.{ClasspathResourceLoader, TransactionalFileCopier, UUIDF}
 import ch.epfl.bluebrain.nexus.delta.plugins.elasticsearch.client.ElasticSearchClient
@@ -74,7 +74,7 @@ class StoragePluginModule(priority: Int) extends ModuleDef {
   }
 
   make[S3LocationGenerator].from { (cfg: StoragePluginConfig) =>
-    val prefix: Uri = cfg.storages.storageTypeConfig.amazon.flatMap(_.prefix).getOrElse(Uri.Empty)
+    val prefix: Path = cfg.storages.storageTypeConfig.amazon.flatMap(_.prefix).getOrElse(Path.Empty)
     new S3LocationGenerator(prefix)
   }
 
diff --git a/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/StoragesConfig.scala b/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/StoragesConfig.scala
index 41b47a7eab..5e9ec45aee 100644
--- a/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/StoragesConfig.scala
+++ b/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/StoragesConfig.scala
@@ -1,6 +1,7 @@
 package ch.epfl.bluebrain.nexus.delta.plugins.storage.storages
 
 import akka.http.scaladsl.model.Uri
+import akka.http.scaladsl.model.Uri.Path
 import cats.implicits._
 import ch.epfl.bluebrain.nexus.delta.kernel.Secret
 import ch.epfl.bluebrain.nexus.delta.plugins.storage.storages.StoragesConfig.StorageTypeConfig
@@ -181,9 +182,9 @@ object StoragesConfig {
       showLocation: Boolean,
       defaultMaxFileSize: Long,
       defaultBucket: String,
-      prefix: Option[Uri]
+      prefix: Option[Path]
   ) extends StorageTypeEntryConfig {
-    val prefixUri: Uri = prefix.getOrElse(Uri.Empty)
+    val prefixPath: Path = prefix.getOrElse(Path.Empty)
   }
 
   /**
@@ -218,13 +219,16 @@ object StoragesConfig {
   implicit private val uriConverter: ConfigConvert[Uri] =
     ConfigConvert.viaString[Uri](catchReadError(Uri(_)), _.toString)
 
+  implicit private val pathConverter: ConfigConvert[Path] =
+    ConfigConvert.viaString[Path](catchReadError(Path(_)), _.toString)
+
   implicit private val permissionConverter: ConfigConvert[Permission] =
     ConfigConvert.viaString[Permission](optF(Permission(_).toOption), _.toString)
 
   implicit private val digestAlgConverter: ConfigConvert[DigestAlgorithm] =
     ConfigConvert.viaString[DigestAlgorithm](optF(DigestAlgorithm(_)), _.toString)
 
-  implicit private val pathConverter: ConfigConvert[AbsolutePath] =
+  implicit private val absolutePathConverter: ConfigConvert[AbsolutePath] =
     ConfigConvert.viaString[AbsolutePath](
       str => AbsolutePath(str).leftMap(err => CannotConvert(str, "AbsolutePath", err)),
       _.toString
diff --git a/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3LocationGenerator.scala b/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3LocationGenerator.scala
index 34143294e1..941f345056 100644
--- a/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3LocationGenerator.scala
+++ b/delta/plugins/storage/src/main/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3LocationGenerator.scala
@@ -1,17 +1,20 @@
 package ch.epfl.bluebrain.nexus.delta.plugins.storage.storages.operations.s3
 
 import akka.http.scaladsl.model.Uri
+import akka.http.scaladsl.model.Uri.Path
 import ch.epfl.bluebrain.nexus.delta.rdf.syntax.uriSyntax
 import ch.epfl.bluebrain.nexus.delta.sourcing.model.ProjectRef
 
 import java.util.UUID
 
-class S3LocationGenerator(prefix: Uri) {
+class S3LocationGenerator(prefix: Path) {
 
   private def uuidToPath(uuid: UUID) =
     Uri.Path(uuid.toString.toLowerCase.takeWhile(_ != '-').mkString("/"))
 
   def file(project: ProjectRef, uuid: UUID, filename: String): Uri =
-    prefix / project.organization.toString / project.project.toString / "files" / uuidToPath(uuid) / filename
+    Uri.Empty / prefix / project.organization.toString / project.project.toString / "files" / uuidToPath(
+      uuid
+    ) / filename
 
 }
diff --git a/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/files/mocks/FileOperationsMock.scala b/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/files/mocks/FileOperationsMock.scala
index 31eaeeb76a..be1adaa34f 100644
--- a/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/files/mocks/FileOperationsMock.scala
+++ b/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/files/mocks/FileOperationsMock.scala
@@ -2,6 +2,7 @@ package ch.epfl.bluebrain.nexus.delta.plugins.storage.files.mocks
 
 import akka.actor.ActorSystem
 import akka.http.scaladsl.model.Uri
+import akka.http.scaladsl.model.Uri.Path
 import cats.effect.IO
 import ch.epfl.bluebrain.nexus.delta.kernel.utils.UUIDF
 import ch.epfl.bluebrain.nexus.delta.plugins.storage.files.UploadedFileInformation
@@ -30,7 +31,7 @@ object FileOperationsMock {
     FileOperations.mk(
       DiskFileOperations.mk,
       RemoteDiskFileOperations.mk(RemoteDiskStorageClientDisabled),
-      S3FileOperations.mk(S3StorageClient.disabled, new S3LocationGenerator(Uri.Empty))
+      S3FileOperations.mk(S3StorageClient.disabled, new S3LocationGenerator(Path.Empty))
     )
 
   def unimplemented: FileOperations = new FileOperations {
diff --git a/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/LocalStackS3StorageClient.scala b/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/LocalStackS3StorageClient.scala
index 7795ce9b65..d7d866cd03 100644
--- a/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/LocalStackS3StorageClient.scala
+++ b/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/LocalStackS3StorageClient.scala
@@ -53,7 +53,7 @@ object LocalStackS3StorageClient {
           showLocation = false,
           defaultMaxFileSize = 1,
           defaultBucket = defaultBucket,
-          prefix = Some(prefix)
+          prefix = Some(Uri.Path(prefix))
         )
         (S3StorageClient.unsafe(client), client, conf)
       }
diff --git a/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3FileOperationsSuite.scala b/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3FileOperationsSuite.scala
index 287fd65002..46c952f523 100644
--- a/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3FileOperationsSuite.scala
+++ b/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3FileOperationsSuite.scala
@@ -43,7 +43,7 @@ class S3FileOperationsSuite
     localStackS3Client()
   implicit private lazy val as: ActorSystem                                                                            = actorSystem()
 
-  private lazy val locationGenerator = new S3LocationGenerator(conf.prefixUri)
+  private lazy val locationGenerator = new S3LocationGenerator(conf.prefixPath)
   private lazy val fileOps           = S3FileOperations.mk(s3StorageClient, locationGenerator)
 
   private def makeDigest(content: String): ComputedDigest = {
@@ -54,7 +54,8 @@ class S3FileOperationsSuite
   private def expectedPath(proj: ProjectRef, filename: String): Uri.Path =
     Uri.Path(s"$proj/files/${randomUuid.toString.takeWhile(_ != '-').mkString("/")}/$filename")
 
-  private def expectedLocation(proj: ProjectRef, filename: String): Uri = conf.prefixUri / expectedPath(proj, filename)
+  private def expectedLocation(proj: ProjectRef, filename: String): Uri =
+    Uri.Empty / conf.prefixPath / expectedPath(proj, filename)
 
   test("List objects in an existing bucket") {
     givenAnS3Bucket { bucket =>
diff --git a/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3LocationGeneratorSuite.scala b/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3LocationGeneratorSuite.scala
index 4ba507fb2a..3168f1d027 100644
--- a/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3LocationGeneratorSuite.scala
+++ b/delta/plugins/storage/src/test/scala/ch/epfl/bluebrain/nexus/delta/plugins/storage/storages/operations/s3/S3LocationGeneratorSuite.scala
@@ -1,6 +1,7 @@
 package ch.epfl.bluebrain.nexus.delta.plugins.storage.storages.operations.s3
 
 import akka.http.scaladsl.model.Uri
+import akka.http.scaladsl.model.Uri.Path
 import ch.epfl.bluebrain.nexus.delta.sourcing.model.ProjectRef
 import ch.epfl.bluebrain.nexus.testkit.mu.NexusSuite
 
@@ -9,7 +10,8 @@ import java.util.UUID
 class S3LocationGeneratorSuite extends NexusSuite {
 
   test("Generate the expected uri") {
-    val prefix   = Uri("/prefix")
+    val prefix   = Path("/prefix")
+    println(prefix)
     val project  = ProjectRef.unsafe("org", "project")
     val uuid     = UUID.fromString("12345678-b2e3-40b9-93de-c809415d7640")
     val filename = "cat.gif"
diff --git a/delta/rdf/src/main/scala/ch/epfl/bluebrain/nexus/delta/rdf/instances/UriInstances.scala b/delta/rdf/src/main/scala/ch/epfl/bluebrain/nexus/delta/rdf/instances/UriInstances.scala
index 2c7afc14a8..8a91218160 100644
--- a/delta/rdf/src/main/scala/ch/epfl/bluebrain/nexus/delta/rdf/instances/UriInstances.scala
+++ b/delta/rdf/src/main/scala/ch/epfl/bluebrain/nexus/delta/rdf/instances/UriInstances.scala
@@ -30,6 +30,11 @@ trait UriInstances {
       .toEither
       .leftMap(err => CannotConvert(str, classOf[Uri].getSimpleName, err.getMessage))
   )
+
+  implicit val pathConfigReader: ConfigReader[Uri.Path] = ConfigReader.fromString(str =>
+    Try(Uri.Path(str)).toEither
+      .leftMap(err => CannotConvert(str, classOf[Uri.Path].getSimpleName, err.getMessage))
+  )
 }
 
 object UriInstances extends UriInstances
diff --git a/ship/src/main/scala/ch/epfl/bluebrain/nexus/ship/config/FileProcessingConfig.scala b/ship/src/main/scala/ch/epfl/bluebrain/nexus/ship/config/FileProcessingConfig.scala
index 76e74c4be9..6e9ffb6545 100644
--- a/ship/src/main/scala/ch/epfl/bluebrain/nexus/ship/config/FileProcessingConfig.scala
+++ b/ship/src/main/scala/ch/epfl/bluebrain/nexus/ship/config/FileProcessingConfig.scala
@@ -1,6 +1,6 @@
 package ch.epfl.bluebrain.nexus.ship.config
 
-import akka.http.scaladsl.model.Uri
+import akka.http.scaladsl.model.Uri.Path
 import pureconfig.ConfigReader
 import ch.epfl.bluebrain.nexus.delta.sdk.instances._
 import pureconfig.generic.semiauto.deriveReader
@@ -8,7 +8,7 @@ import pureconfig.generic.semiauto.deriveReader
 final case class FileProcessingConfig(
     importBucket: String,
     targetBucket: String,
-    prefix: Option[Uri],
+    prefix: Option[Path],
     skipFileEvents: Boolean
 )
 
diff --git a/ship/src/main/scala/ch/epfl/bluebrain/nexus/ship/files/FileCopier.scala b/ship/src/main/scala/ch/epfl/bluebrain/nexus/ship/files/FileCopier.scala
index abdfc0fbe9..db6f66f82d 100644
--- a/ship/src/main/scala/ch/epfl/bluebrain/nexus/ship/files/FileCopier.scala
+++ b/ship/src/main/scala/ch/epfl/bluebrain/nexus/ship/files/FileCopier.scala
@@ -1,6 +1,7 @@
 package ch.epfl.bluebrain.nexus.ship.files
 
 import akka.http.scaladsl.model.Uri
+import akka.http.scaladsl.model.Uri.Path
 import cats.effect.IO
 import ch.epfl.bluebrain.nexus.delta.kernel.Logger
 import ch.epfl.bluebrain.nexus.delta.kernel.utils.UrlUtils
@@ -42,7 +43,7 @@ object FileCopier {
   ): FileCopier = {
     val importBucket      = config.importBucket
     val targetBucket      = config.targetBucket
-    val locationGenerator = new S3LocationGenerator(config.prefix.getOrElse(Uri.Empty))
+    val locationGenerator = new S3LocationGenerator(config.prefix.getOrElse(Path.Empty))
     (project: ProjectRef, attributes: FileAttributes) => {
       val origin          = attributes.path
       val patchedFileName = if (attributes.filename.isEmpty) "file" else attributes.filename
diff --git a/ship/src/test/scala/ch/epfl/bluebrain/nexus/ship/config/ShipConfigFixtures.scala b/ship/src/test/scala/ch/epfl/bluebrain/nexus/ship/config/ShipConfigFixtures.scala
index dddfbe6bd6..949e894523 100644
--- a/ship/src/test/scala/ch/epfl/bluebrain/nexus/ship/config/ShipConfigFixtures.scala
+++ b/ship/src/test/scala/ch/epfl/bluebrain/nexus/ship/config/ShipConfigFixtures.scala
@@ -1,10 +1,11 @@
 package ch.epfl.bluebrain.nexus.ship.config
 
+import akka.http.scaladsl.model.Uri
 import ch.epfl.bluebrain.nexus.delta.kernel.Secret
 import ch.epfl.bluebrain.nexus.delta.plugins.storage.files
 import ch.epfl.bluebrain.nexus.delta.plugins.storage.storages.StoragesConfig.S3StorageConfig
 import ch.epfl.bluebrain.nexus.delta.plugins.storage.storages.{permissions, StorageFixtures, StoragesConfig}
-import ch.epfl.bluebrain.nexus.delta.rdf.syntax.{iriStringContextSyntax, uriStringContextSyntax}
+import ch.epfl.bluebrain.nexus.delta.rdf.syntax.iriStringContextSyntax
 import ch.epfl.bluebrain.nexus.delta.sdk.identities.model.ServiceAccount
 import ch.epfl.bluebrain.nexus.delta.sdk.model.{BaseUri, ServiceAccountConfig}
 import ch.epfl.bluebrain.nexus.delta.sdk.{ConfigFixtures, Defaults}
@@ -59,7 +60,7 @@ trait ShipConfigFixtures extends ConfigFixtures with StorageFixtures with Classp
       FileProcessingConfig(
         importBucket,
         targetBucket,
-        Some(uri"/prefix"),
+        Some(Uri.Path("/prefix")),
         skipFileEvents = false
       ),
       IriPatcherConfig(enabled = false, iri"https://bbp.epfl.ch/", iri"https:/openbrainplatform.com/"),
diff --git a/tests/docker/config/delta-postgres.conf b/tests/docker/config/delta-postgres.conf
index 31002aa6d7..7ebbfaeab8 100644
--- a/tests/docker/config/delta-postgres.conf
+++ b/tests/docker/config/delta-postgres.conf
@@ -156,7 +156,7 @@ plugins {
         default-access-key = "MY_ACCESS_KEY"
         default-secret-key = "CHUTCHUT"
         default-bucket = "mydefaultbucket"
-        prefix = "myprefix"
+        prefix = "/myprefix"
       }
     }
 
diff --git a/tests/src/test/resources/application.conf b/tests/src/test/resources/application.conf
index 828e899728..2990f1749f 100644
--- a/tests/src/test/resources/application.conf
+++ b/tests/src/test/resources/application.conf
@@ -21,6 +21,6 @@ storage {
   s-3 {
     access-key = "MY_ACCESS_KEY"
     secret-key = "CHUTCHUT"
-    prefix     = "myprefix"
+    prefix     = "/myprefix"
   }
 }
\ No newline at end of file
diff --git a/tests/src/test/scala/ch/epfl/bluebrain/nexus/tests/kg/files/S3StorageSpec.scala b/tests/src/test/scala/ch/epfl/bluebrain/nexus/tests/kg/files/S3StorageSpec.scala
index 476e432f71..e12524ad4f 100644
--- a/tests/src/test/scala/ch/epfl/bluebrain/nexus/tests/kg/files/S3StorageSpec.scala
+++ b/tests/src/test/scala/ch/epfl/bluebrain/nexus/tests/kg/files/S3StorageSpec.scala
@@ -231,7 +231,7 @@ class S3StorageSpec extends StorageSpec {
 
   private def assertThereIsAFileInS3WithAtLocation(location: String): Assertion = {
     s3Client
-      .listObjectsV2(ListObjectsV2Request.builder.bucket(bucket).prefix(s"myprefix/$projectRef/files").build)
+      .listObjectsV2(ListObjectsV2Request.builder.bucket(bucket).prefix(s"/myprefix/$projectRef/files").build)
       .map(_.contents.asScala.map(_.key()))
       .map(keys => keys should contain(location))
       .accepted