diff --git a/martin/src/pg/config.rs b/martin/src/pg/config.rs
index fd4fbe877..1aa855a76 100644
--- a/martin/src/pg/config.rs
+++ b/martin/src/pg/config.rs
@@ -98,11 +98,15 @@ impl PgConfig {
     pub fn validate(&self) -> PgResult<()> {
         if let Some(pool_size) = self.pool_size {
             if pool_size < 1 {
-                return Err(PgError::ConfigError("pool_size must be greater than or equal to 1."));
+                return Err(PgError::ConfigError(
+                        "pool_size must be greater than or equal to 1.",
+                        ));
             }
         }
         if self.connection_string.is_none() {
-            return Err(PgError::ConfigError("A connection string must be provided."));
+            return Err(PgError::ConfigError(
+                    "A connection string must be provided.",
+                    ));
         }
 
         Ok(())