diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/topo/model/UiModelEvent.java b/web/gui/src/main/java/org/onosproject/ui/impl/topo/model/UiModelEvent.java
index c37f27d..1a2c66c 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/topo/model/UiModelEvent.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/topo/model/UiModelEvent.java
@@ -29,8 +29,12 @@
     }
 
     enum Type {
-        DEVICE_ADDED,
+        CLUSTER_MEMBER_ADDED_OR_UPDATED,
+        CLUSTER_MEMBER_REMOVED,
+
+        DEVICE_ADDED_OR_UPDATED,
         DEVICE_REMOVED,
+
         // TODO...
     }
 }