diff --git a/gst/rtp/gstrtputils.h b/gst/rtp/gstrtputils.h
index 8e142730e9..3910aeb992 100644
--- a/gst/rtp/gstrtputils.h
+++ b/gst/rtp/gstrtputils.h
@@ -25,9 +25,13 @@
 
 G_BEGIN_DECLS
 
+G_GNUC_INTERNAL
 void gst_rtp_copy_meta (GstElement * element, GstBuffer *outbuf, GstBuffer *inbuf, GQuark copy_tag);
+
+G_GNUC_INTERNAL
 void gst_rtp_drop_meta (GstElement * element, GstBuffer *buf, GQuark keep_tag);
 
+G_GNUC_INTERNAL
 gboolean gst_rtp_read_golomb (GstBitReader * br, guint32 * value);
 
 G_END_DECLS