diff --git a/config.yaml b/config.yaml
index 85b3162..7f8cafa 100755
--- a/config.yaml
+++ b/config.yaml
@@ -1,6 +1,6 @@
 service:
   logging_level: $LOGGING_LEVEL_ROOT|DEBUG  # Logging level for service logger
-  target_file_extension: $TARGET_FILE_EXTENSION|"pdf.gz"  # Extension for files to download from storage and process
+  target_file_extension: $TARGET_FILE_EXTENSION|"ORIGIN.pdf.gz"  # Extension for files to download from storage and process
   response_file_extension: $RESPONSE_FILE_EXTENSION|"json.gz"  # Extension for response files to upload to storage
   # In case a service is not supposed to place response files under the root folder `dossierId/fileId` and requests do
   # not specify an operation, this parameter can specify an output folder