diff --git a/lib/browser/guest-window-manager.js b/lib/browser/guest-window-manager.js
index 7649547f9428..dc51ce105df3 100644
--- a/lib/browser/guest-window-manager.js
+++ b/lib/browser/guest-window-manager.js
@@ -247,7 +247,7 @@ ipcMain.on('ELECTRON_GUEST_WINDOW_MANAGER_INTERNAL_WINDOW_OPEN', function (event
   const newGuest = event.newGuest
   if ((event.sender.isGuest() && !event.sender.allowPopups) || event.defaultPrevented) {
     if (newGuest !== undefined && newGuest !== null) {
-      if (webContents == newGuest.webContents) {
+      if (webContents === newGuest.webContents) {
         event.defaultPrevented = false
       }
       event.returnValue = setupGuest(event.sender, frameName, newGuest, options)