diff --git a/ChangeLog b/ChangeLog
index 0785c11ec9..84ec2ee3d9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2006-06-23  Jan Schmidt  <thaytan@mad.scientist.com>
+
+	* ext/a52dec/gsta52dec.c: (plugin_init):
+	  Call the channel positions get_type() method in plugin_init 
+	  to ensure that it isn't simultaneously called later from 
+	  multiple threads.
+
 2006-06-23  Tim-Philipp Müller  <tim at centricular dot net>
 
 	* gst/mpegstream/gstmpegpacketize.c:
diff --git a/ext/a52dec/gsta52dec.c b/ext/a52dec/gsta52dec.c
index 579ae5c1d5..1336252858 100644
--- a/ext/a52dec/gsta52dec.c
+++ b/ext/a52dec/gsta52dec.c
@@ -750,6 +750,10 @@ gst_a52dec_get_property (GObject * object, guint prop_id, GValue * value,
 static gboolean
 plugin_init (GstPlugin * plugin)
 {
+  /* ensure GstAudioChannelPosition type is registered */
+  if (!gst_audio_channel_position_get_type ())
+    return FALSE;
+
   if (!gst_element_register (plugin, "a52dec", GST_RANK_SECONDARY,
           GST_TYPE_A52DEC))
     return FALSE;