diff --git a/common b/common
index a3e3ce481d..19fa4f3022 160000
--- a/common
+++ b/common
@@ -1 +1 @@
-Subproject commit a3e3ce481deb7b8bce629142c8f6f4cde7424b5c
+Subproject commit 19fa4f30229d0d3c468a5ecbab1f99c98e8afc67
diff --git a/gst/audioconvert/gstchannelmix.c b/gst/audioconvert/gstchannelmix.c
index 1dbfcce75b..055f28d7af 100644
--- a/gst/audioconvert/gstchannelmix.c
+++ b/gst/audioconvert/gstchannelmix.c
@@ -638,7 +638,7 @@ gst_channel_mix_setup_matrix (AudioConvertCtx * this)
       g_string_append (s, " }");
     }
     g_string_append (s, " }");
-    GST_DEBUG (s->str);
+    GST_DEBUG ("%s", s->str);
     g_string_free (s, TRUE);
   }
 #endif