diff --git a/src/models/user.ts b/src/models/user.ts
index cf5a4a361..686bcc5ec 100644
--- a/src/models/user.ts
+++ b/src/models/user.ts
@@ -22,6 +22,8 @@ import SwSubscription, { deleteSwSubscription } from './sw-subscription';
 
 const User = db.get<IUser>('users');
 
+User.createIndex('username');
+User.createIndex('usernameLower');
 User.createIndex(['username', 'host'], { unique: true });
 User.createIndex(['usernameLower', 'host'], { unique: true });
 User.createIndex('token', { unique: true });