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 83dcae2..2d13a5c 100644
--- a/web/gui/src/main/webapp/app/view/topo2/topo2Event.js
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2Event.js
@@ -42,6 +42,7 @@
             topo2AllInstances: t2fs,
             topo2CurrentLayout: t2fs,
             topo2CurrentRegion: t2fs,
+            topo2PeerRegions: t2fs,
             topo2StartDone: t2fs
 
             // Add further event names / module references as needed