diff --git a/core/api/src/main/java/org/onosproject/ui/UiConnection.java b/core/api/src/main/java/org/onosproject/ui/UiConnection.java
index 123acb9..ead7b0d 100644
--- a/core/api/src/main/java/org/onosproject/ui/UiConnection.java
+++ b/core/api/src/main/java/org/onosproject/ui/UiConnection.java
@@ -36,6 +36,7 @@
      * @param sid     message sequence number
      * @param payload message payload
      */
+    // TODO: remove sid parameter
     void sendMessage(String type, long sid, ObjectNode payload);
 
 }
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