diff --git a/ChangeLog b/ChangeLog
index 692508f19b..7e15935572 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2007-11-20  Sebastian Dröge  <slomo@circular-chaos.org>
+
+	* ext/wavpack/gstwavpackcommon.c: (gst_wavpack_set_channel_layout):
+	Also set the channel layout on the Wavpack caps if we're having
+	a mono layout. Of course only do it for "audio/x-wavpack".
+
 2007-11-20  Sebastian Dröge  <slomo@circular-chaos.org>
 
 	* ext/wavpack/gstwavpackcommon.c:
diff --git a/ext/wavpack/gstwavpackcommon.c b/ext/wavpack/gstwavpackcommon.c
index 4fa3e121c2..9fb97a73cd 100644
--- a/ext/wavpack/gstwavpackcommon.c
+++ b/ext/wavpack/gstwavpackcommon.c
@@ -185,6 +185,7 @@ gst_wavpack_set_channel_layout (GstCaps * caps, gint layout)
 
   if (num_channels == 1 && layout == 0x00004) {
     pos[0] = GST_AUDIO_CHANNEL_POSITION_FRONT_MONO;
+    gst_audio_set_channel_positions (s, pos);
     return TRUE;
   }