diff --git a/sys/directsound/gstdirectsoundsink.c b/sys/directsound/gstdirectsoundsink.c
index 0b414be042..daa72145b4 100644
--- a/sys/directsound/gstdirectsoundsink.c
+++ b/sys/directsound/gstdirectsoundsink.c
@@ -136,6 +136,10 @@ G_DEFINE_TYPE_WITH_CODE (GstDirectSoundSink, gst_directsound_sink,
 static void
 gst_directsound_sink_finalize (GObject * object)
 {
+  GstDirectSoundSink *dsoundsink = GST_DIRECTSOUND_SINK (object);
+
+  g_mutex_clear (&dsoundsink->dsound_lock);
+
   G_OBJECT_CLASS (parent_class)->finalize (object);
 }
 
@@ -208,7 +212,7 @@ gst_directsound_sink_init (GstDirectSoundSink * dsoundsink)
   dsoundsink->current_circular_offset = 0;
   dsoundsink->buffer_size = DSBSIZE_MIN;
   dsoundsink->volume = 100;
-  dsoundsink->dsound_lock = g_mutex_new ();
+  g_mutex_init (&dsoundsink->dsound_lock);
   dsoundsink->first_buffer_after_reset = FALSE;
 }
 
diff --git a/sys/directsound/gstdirectsoundsink.h b/sys/directsound/gstdirectsoundsink.h
index 5e23f19342..43b2dde1b9 100644
--- a/sys/directsound/gstdirectsoundsink.h
+++ b/sys/directsound/gstdirectsoundsink.h
@@ -48,8 +48,8 @@ G_BEGIN_DECLS
 typedef struct _GstDirectSoundSink GstDirectSoundSink;
 typedef struct _GstDirectSoundSinkClass GstDirectSoundSinkClass;
 
-#define GST_DSOUND_LOCK(obj)	(g_mutex_lock (obj->dsound_lock))
-#define GST_DSOUND_UNLOCK(obj)	(g_mutex_unlock (obj->dsound_lock))
+#define GST_DSOUND_LOCK(obj)	(g_mutex_lock (&obj->dsound_lock))
+#define GST_DSOUND_UNLOCK(obj)	(g_mutex_unlock (&obj->dsound_lock))
 
 struct _GstDirectSoundSink
 {
@@ -76,7 +76,7 @@ struct _GstDirectSoundSink
 
   GstCaps *cached_caps;
   /* lock used to protect writes and resets */
-  GMutex *dsound_lock;
+  GMutex dsound_lock;
 
   gboolean first_buffer_after_reset;