diff --git a/gst-libs/gst/riff/riff-ids.h b/gst-libs/gst/riff/riff-ids.h
index c1ed2cf5a6..ab5617927e 100644
--- a/gst-libs/gst/riff/riff-ids.h
+++ b/gst-libs/gst/riff/riff-ids.h
@@ -57,6 +57,7 @@ G_BEGIN_DECLS
 #define GST_RIFF_TAG_BEXT GST_MAKE_FOURCC ('B','E','X','T')
 #define GST_RIFF_TAG_fact GST_MAKE_FOURCC ('f','a','c','t')
 #define GST_RIFF_TAG_acid GST_MAKE_FOURCC ('a','c','i','d')
+#define GST_RIFF_TAG_labl GST_MAKE_FOURCC ('l','a','b','l')
 
 /* LIST types */
 #define GST_RIFF_LIST_movi GST_MAKE_FOURCC ('m','o','v','i')