diff --git a/gst-libs/gst/pbutils/pbutils-marshal.list b/gst-libs/gst/pbutils/pbutils-marshal.list
index 7b74d106f6..f409996c1c 100644
--- a/gst-libs/gst/pbutils/pbutils-marshal.list
+++ b/gst-libs/gst/pbutils/pbutils-marshal.list
@@ -1 +1,2 @@
+# pbutils marshallers
 VOID:POINTER,BOXED
diff --git a/gst-libs/gst/rtsp/gstrtsp-marshal.list b/gst-libs/gst/rtsp/gstrtsp-marshal.list
index 246d37e992..40b8c72c0e 100644
--- a/gst-libs/gst/rtsp/gstrtsp-marshal.list
+++ b/gst-libs/gst/rtsp/gstrtsp-marshal.list
@@ -1 +1,2 @@
+# rtsp marshallers
 ENUM:POINTER,POINTER