diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index c6238b2..8843c3f 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -300,7 +300,8 @@ export function setupOAuthCallbackServerWithLongPoll(options: OAuthCallbackServe
     log('Auth code received, resolving promise')
     authCompletedResolve(code)
 
-    res.send('Authorization successful! You may close this window and return to the CLI.')
+    res.send('Authorization successful! You may close this window and return to the CLI.' +
+             '<script>window.close();</script>')
 
     // Notify main flow that auth code is available
     options.events.emit('auth-code-received', code)