diff --git a/gst-libs/gst/riff/riff-read.c b/gst-libs/gst/riff/riff-read.c
index 28f4a80a2a..4a43f9975c 100644
--- a/gst-libs/gst/riff/riff-read.c
+++ b/gst-libs/gst/riff/riff-read.c
@@ -113,11 +113,11 @@ too_small:
  *          by the read size by this function.
  * @fourcc: fourcc (returned by this function0 of the chunk.
  * @chunk_data: buffer (returned by the function) containing the
- *              chunk data.
+ *              chunk data, which may be NULL if chunksize == 0
  *
  * Reads a single chunk.
  *
- * Returns: the fourcc tag of this chunk, or FALSE on error
+ * Returns: FALSE on error, TRUE otherwise
  */
 gboolean
 gst_riff_parse_chunk (GstElement * element, GstBuffer * buf,