diff --git a/lib/ace/edit_session/folding.js b/lib/ace/edit_session/folding.js
index db97cce7..7676150c 100644
--- a/lib/ace/edit_session/folding.js
+++ b/lib/ace/edit_session/folding.js
@@ -683,6 +683,7 @@ function Folding() {
     };
 
     this.onFoldWidgetClick = function(row, e) {
+        e = e.domEvent;
         var type = this.getFoldWidget(row);
         var line = this.getLine(row);
         var onlySubfolds = e.shiftKey;