diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2.js b/web/gui/src/main/webapp/app/view/topo2/topo2.js
index ccc50e0..839a736 100644
--- a/web/gui/src/main/webapp/app/view/topo2/topo2.js
+++ b/web/gui/src/main/webapp/app/view/topo2/topo2.js
@@ -152,6 +152,7 @@
                 t2es.stop();
                 ks.unbindKeys();
                 t2fs.destroy();
+                t2is.destroy();
             });
 
             // svg layer and initialization of components