diff --git a/reactos/lib/drivers/sound/mmixer/filter.c b/reactos/lib/drivers/sound/mmixer/filter.c
index 5e1ff8b05f9..d02477de082 100644
--- a/reactos/lib/drivers/sound/mmixer/filter.c
+++ b/reactos/lib/drivers/sound/mmixer/filter.c
@@ -203,7 +203,9 @@ MMixerGetControlTypeFromTopologyNode(
         UNIMPLEMENTED;
         return MIXERCONTROL_CONTROLTYPE_VOLUME;
     }
-    UNIMPLEMENTED
+    //TODO
+    //check for other supported node types
+    //UNIMPLEMENTED
     return 0;
 }