diff --git a/addons/web_editor/static/src/js/editor/snippets.editor.js b/addons/web_editor/static/src/js/editor/snippets.editor.js
index 6778da60d29..58ec48fa416 100644
--- a/addons/web_editor/static/src/js/editor/snippets.editor.js
+++ b/addons/web_editor/static/src/js/editor/snippets.editor.js
@@ -2455,7 +2455,7 @@ var SnippetsMenu = Widget.extend({
      * @private
      */
     _onDeactivateSnippet: function (ev) {
-        this._enableLastEditor(ev.data.previewMode);
+        this._enableLastEditor(ev && ev.data.previewMode);
     },
 
     /**