diff --git a/src/modules/utility/source/utility.gypi b/src/modules/utility/source/utility.gypi
index 78f588a62..0013c46fa 100644
--- a/src/modules/utility/source/utility.gypi
+++ b/src/modules/utility/source/utility.gypi
@@ -29,7 +29,7 @@
         ],
       },
       'sources': [
-        '../interface/audio_frame_operations.h'
+        '../interface/audio_frame_operations.h',
         '../interface/file_player.h',
         '../interface/file_recorder.h',
         '../interface/process_thread.h',