diff --git a/js/index.js b/js/index.js
index 9ef3dfdf3..64c4c706d 100644
--- a/js/index.js
+++ b/js/index.js
@@ -20,7 +20,7 @@
             bg.owsDesktopApp.getAppView(window).then(function(appView) {
                 var bodyEl = document.getElementById('signal-container');
                 bodyEl.innerHTML = "";
-                bodyEl.append(appView.el);
+                bodyEl.appendChild(appView.el);
             });
         });
     }