diff --git a/back/methods/vn-user/validate-auth.js b/back/methods/vn-user/validate-auth.js
index beab43417..8fb8b4923 100644
--- a/back/methods/vn-user/validate-auth.js
+++ b/back/methods/vn-user/validate-auth.js
@@ -58,7 +58,7 @@ module.exports = Self => {
             fields: ['name', 'twoFactor']
         }, myOptions);
 
-        if (user.name !== username)
+        if (user.name.toLowerCase() !== username.toLowerCase())
             throw new UserError('Authentication failed');
 
         await authCode.destroy(myOptions);