diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2Event.js b/web/gui/src/main/webapp/app/view/topo2/topo2Event.js
index 705173c..138d866 100644
--- a/web/gui/src/main/webapp/app/view/topo2/topo2Event.js
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2Event.js
@@ -42,7 +42,9 @@
             topo2CurrentLayout: t2fs,
             topo2CurrentRegion: t2fs,
             topo2PeerRegions: t2fs,
-            topo2StartDone: t2fs
+            topo2StartDone: t2fs,
+
+            topo2UiModelEvent: t2fs
 
             // Add further event names / module references as needed
         };