diff --git a/lib/ace/mouse/default_handlers.js b/lib/ace/mouse/default_handlers.js
index a574e46a..85ce5e5c 100644
--- a/lib/ace/mouse/default_handlers.js
+++ b/lib/ace/mouse/default_handlers.js
@@ -259,7 +259,10 @@ function DefaultHandlers(editor) {
         // If the user dclicked on a fold, then expand it.
         var fold = editor.session.getFoldAt(pos.row, pos.column, 1);
         if (fold) {
-            editor.session.expandFold(fold);
+            if (ev.getAccelKey())
+                editor.session.removeFold(fold);
+            else
+                editor.session.expandFold(fold);
         }
         else {
             editor.moveCursorToPosition(pos);
diff --git a/lib/ace/mouse/mouse_event.js b/lib/ace/mouse/mouse_event.js
index b8ffcf5c..bc66a9da 100644
--- a/lib/ace/mouse/mouse_event.js
+++ b/lib/ace/mouse/mouse_event.js
@@ -128,6 +128,10 @@ var MouseEvent = exports.MouseEvent = function(domEvent, editor) {
         return this.domEvent.shiftKey;
     };
     
+    this.getAccelKey = function() {
+        return this.domEvent.ctrlKey || this.domEvent.metaKey ;
+    };
+    
 }).call(MouseEvent.prototype);
 
 });
\ No newline at end of file