diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/topo/UiTopoSession.java b/web/gui/src/main/java/org/onosproject/ui/impl/topo/UiTopoSession.java
index 79e262b..f13ebc5 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/topo/UiTopoSession.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/topo/UiTopoSession.java
@@ -139,7 +139,7 @@
         //   that are not relevant, and only send up events for objects that
         //   are currently being viewed by the user.
 
-        webSocket.sendMessage(TOPO2_UI_MODEL_EVENT, 0, payload);
+        webSocket.sendMessage(TOPO2_UI_MODEL_EVENT, payload);
     }
 
     /**