diff --git a/modules/openapi-generator/src/main/resources/scala-akka-http-server/multipartDirectives.mustache b/modules/openapi-generator/src/main/resources/scala-akka-http-server/multipartDirectives.mustache
index 97427179ff21..c141b8c3366b 100644
--- a/modules/openapi-generator/src/main/resources/scala-akka-http-server/multipartDirectives.mustache
+++ b/modules/openapi-generator/src/main/resources/scala-akka-http-server/multipartDirectives.mustache
@@ -70,7 +70,7 @@ trait MultipartDirectives {
 
 object MultipartDirectives extends MultipartDirectives with FileUploadDirectives {
   val tempFileFromFileInfo: FileInfo => File = {
-    file: FileInfo => Files.createTempFile(file.fileName, ".tmp").toFile()
+    (file: FileInfo) => Files.createTempFile(file.fileName, ".tmp").toFile()
   }
 }
 
diff --git a/samples/server/petstore/scala-akka-http-server/src/main/scala/org/openapitools/server/MultipartDirectives.scala b/samples/server/petstore/scala-akka-http-server/src/main/scala/org/openapitools/server/MultipartDirectives.scala
index 2ebbd943db2f..ed2a5f22ecd3 100644
--- a/samples/server/petstore/scala-akka-http-server/src/main/scala/org/openapitools/server/MultipartDirectives.scala
+++ b/samples/server/petstore/scala-akka-http-server/src/main/scala/org/openapitools/server/MultipartDirectives.scala
@@ -70,7 +70,7 @@ trait MultipartDirectives {
 
 object MultipartDirectives extends MultipartDirectives with FileUploadDirectives {
   val tempFileFromFileInfo: FileInfo => File = {
-    file: FileInfo => Files.createTempFile(file.fileName, ".tmp").toFile()
+    (file: FileInfo) => Files.createTempFile(file.fileName, ".tmp").toFile()
   }
 }
 
diff --git a/samples/server/petstore/scala-pekko-http-server/src/main/scala/org/openapitools/server/MultipartDirectives.scala b/samples/server/petstore/scala-pekko-http-server/src/main/scala/org/openapitools/server/MultipartDirectives.scala
index 87c1ef2c852f..2669c2672dc1 100644
--- a/samples/server/petstore/scala-pekko-http-server/src/main/scala/org/openapitools/server/MultipartDirectives.scala
+++ b/samples/server/petstore/scala-pekko-http-server/src/main/scala/org/openapitools/server/MultipartDirectives.scala
@@ -70,7 +70,7 @@ trait MultipartDirectives {
 
 object MultipartDirectives extends MultipartDirectives with FileUploadDirectives {
   val tempFileFromFileInfo: FileInfo => File = {
-    file: FileInfo => Files.createTempFile(file.fileName, ".tmp").toFile()
+    (file: FileInfo) => Files.createTempFile(file.fileName, ".tmp").toFile()
   }
 }