diff --git a/lib/browser/guest-view-manager.js b/lib/browser/guest-view-manager.js
index 9eb81b89ae2..f1a460271b4 100644
--- a/lib/browser/guest-view-manager.js
+++ b/lib/browser/guest-view-manager.js
@@ -206,7 +206,7 @@ const attachGuest = function (event, elementInstanceId, guestInstanceId, params)
     webPreferences.preloadURL = params.preload
   }
 
-  event.sender.emit('will-attach-webview', event, webPreferences, params)
+  embedder.emit('will-attach-webview', event, webPreferences, params)
   if (event.defaultPrevented) {
     if (guest.viewInstanceId == null) guest.viewInstanceId = params.instanceId
     destroyGuest(embedder, guestInstanceId)