diff --git a/utils/netty/src/main/java/org/onlab/netty/MessagingService.java b/utils/netty/src/main/java/org/onlab/netty/MessagingService.java
index d455c94..fece742 100644
--- a/utils/netty/src/main/java/org/onlab/netty/MessagingService.java
+++ b/utils/netty/src/main/java/org/onlab/netty/MessagingService.java
@@ -39,6 +39,7 @@
      */
     public void unregisterHandler(String type);
 
+    // FIXME: remove me and add PayloadSerializer to all other methods
     /**
      * Specify the serializer to use for encoding/decoding payload.
      *