diff --git a/tools/gst-discoverer.c b/tools/gst-discoverer.c
index 2182c0f0c9..6a18f407b5 100644
--- a/tools/gst-discoverer.c
+++ b/tools/gst-discoverer.c
@@ -483,6 +483,7 @@ main (int argc, char **argv)
 
     gst_discoverer_stop (dc);
     g_free (ps);
+    g_main_loop_unref (ml);
   }
   g_object_unref (dc);