diff --git a/packages/backend/src/routers/change_email.js b/packages/backend/src/routers/change_email.js
index a7836010..9ae745bd 100644
--- a/packages/backend/src/routers/change_email.js
+++ b/packages/backend/src/routers/change_email.js
@@ -78,7 +78,6 @@ const CHANGE_EMAIL_START = eggspress('/change_email/start', {
 });
 
 const CHANGE_EMAIL_CONFIRM = eggspress('/change_email/confirm', {
-    subdomain: 'api',
     auth: true,
     verified: true,
     allowedMethods: ['GET'],