diff --git a/ChangeLog b/ChangeLog
index 9ccf5c7531..4571c80d30 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2007-06-19  Wim Taymans  <wim@fluendo.com>
+
+	Patch by: Laurent Glayal <spglegle at yahoo dot fr>
+
+	* ext/amrnb/amrnbdec.c: (gst_amrnbdec_class_init),
+	(gst_amrnbdec_finalize):
+	Don't leak the adapter, unref it in a new finalize method instead.
+	Fixes #448782.
+
 2007-06-19  Jan Schmidt  <thaytan@mad.scientist.com>
 
 	* configure.ac:
diff --git a/ext/amrnb/amrnbdec.c b/ext/amrnb/amrnbdec.c
index 2f2cdf01b3..07a7faac76 100644
--- a/ext/amrnb/amrnbdec.c
+++ b/ext/amrnb/amrnbdec.c
@@ -53,6 +53,8 @@ static gboolean gst_amrnbdec_setcaps (GstPad * pad, GstCaps * caps);
 static GstStateChangeReturn gst_amrnbdec_state_change (GstElement * element,
     GstStateChange transition);
 
+static void gst_amrnbdec_finalize (GObject * object);
+
 #define _do_init(bla) \
     GST_DEBUG_CATEGORY_INIT (gst_amrnbdec_debug, "amrnbdec", 0, "AMR-NB audio decoder");
 
@@ -79,8 +81,11 @@ gst_amrnbdec_base_init (gpointer klass)
 static void
 gst_amrnbdec_class_init (GstAmrnbDecClass * klass)
 {
+  GObjectClass *object_class = G_OBJECT_CLASS (klass);
   GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
 
+  object_class->finalize = gst_amrnbdec_finalize;
+
   element_class->change_state = GST_DEBUG_FUNCPTR (gst_amrnbdec_state_change);
 }
 
@@ -109,6 +114,19 @@ gst_amrnbdec_init (GstAmrnbDec * amrnbdec, GstAmrnbDecClass * klass)
   amrnbdec->handle = NULL;
 }
 
+static void
+gst_amrnbdec_finalize (GObject * object)
+{
+  GstAmrnbDec *amrnbdec;
+
+  amrnbdec = GST_AMRNBDEC (object);
+
+  gst_adapter_clear (amrnbdec->adapter);
+  g_object_unref (amrnbdec->adapter);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
 static gboolean
 gst_amrnbdec_setcaps (GstPad * pad, GstCaps * caps)
 {