diff --git a/addons/web_editor/static/src/js/editor/rte.js b/addons/web_editor/static/src/js/editor/rte.js
index eecee43a5c6..529bf68887e 100644
--- a/addons/web_editor/static/src/js/editor/rte.js
+++ b/addons/web_editor/static/src/js/editor/rte.js
@@ -734,7 +734,7 @@ var RTEWidget = Widget.extend({
         // selected too)
         //
         // The triple click behavior is reimplemented for all browsers here
-        if (ev.originalEvent.detail === 3) {
+        if (ev.originalEvent && ev.originalEvent.detail === 3) {
             // Select the whole content inside the deepest DOM element that was
             // triple-clicked
             range.create(ev.target, 0, ev.target, ev.target.childNodes.length).select();