diff --git a/src/static/js/ace2_inner.js b/src/static/js/ace2_inner.js
index d912dfb1..ebbdea15 100644
--- a/src/static/js/ace2_inner.js
+++ b/src/static/js/ace2_inner.js
@@ -2903,6 +2903,7 @@ function Ace2Inner(){
 
       hooks.callAll('aceSelectionChanged', {
         rep: rep,
+        callstack: currentCallStack,
         documentAttributeManager: documentAttributeManager,
       });