diff --git a/packages/hydrooj/package.json b/packages/hydrooj/package.json
index 4c46d5d4..603ac5aa 100644
--- a/packages/hydrooj/package.json
+++ b/packages/hydrooj/package.json
@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.29.34",
+    "version": "2.29.35",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
diff --git a/packages/hydrooj/src/handler/user.ts b/packages/hydrooj/src/handler/user.ts
index e6d65813..43b96007 100644
--- a/packages/hydrooj/src/handler/user.ts
+++ b/packages/hydrooj/src/handler/user.ts
@@ -85,7 +85,7 @@ export class UserRegisterHandler extends Handler {
             if (system.get('smtp.verify') && system.get('smtp.user')) {
                 const m = await this.renderHTML('user_register_mail.html', {
                     path: `register/${t[0]}`,
-                    url_prefix: (this.domain.host || [])[0] || system.get('server.url'),
+                    url_prefix: (this.domain.host instanceof Array ? this.domain.host[0] : this.domain.host) || system.get('server.url'),
                 });
                 await sendMail(mail, 'Sign Up', 'user_register_mail', m);
                 this.response.template = 'user_register_mail_sent.html';
@@ -154,7 +154,7 @@ class UserLostPassHandler extends Handler {
         );
         const m = await this.renderHTML('user_lostpass_mail.html', {
             url: `lostpass/${tid}`,
-            url_prefix: this.domain.host || system.get('server.url'),
+            url_prefix: (this.domain.host instanceof Array ? this.domain.host[0] : this.domain.host) || system.get('server.url'),
             uname: udoc.uname,
         });
         await sendMail(mail, 'Lost Password', 'user_lostpass_mail', m);
diff --git a/packages/hydrooj/src/service/server.ts b/packages/hydrooj/src/service/server.ts
index c4e03e5b..aabd05ac 100644
--- a/packages/hydrooj/src/service/server.ts
+++ b/packages/hydrooj/src/service/server.ts
@@ -357,7 +357,12 @@ export class HandlerCommon {
         try {
             const { anchor } = args;
             if (args.domainId) name += '_with_domainId';
-            else if ((!this.request.host || this.domain?.host !== this.request.host) && this.domainId !== 'system') {
+            else if (this.domainId !== 'system' && (
+                !this.request.host
+                || (this.domain?.host instanceof Array
+                    ? (!this.domain.host.includes(this.request.host))
+                    : this.domain.host !== this.domain?.host)
+            )) {
                 name += '_with_domainId';
                 args.domainId = this.domainId;
             }
diff --git a/packages/ui-default/package.json b/packages/ui-default/package.json
index 7adf8959..026df20c 100644
--- a/packages/ui-default/package.json
+++ b/packages/ui-default/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hydrooj/ui-default",
-  "version": "4.13.1",
+  "version": "4.13.2",
   "author": "undefined <i@undefined.moe>",
   "license": "AGPL-3.0",
   "main": "hydro.js",