diff --git a/patches/002-login-without-domain.patch b/patches/002-login-without-domain.patch
index 96862b1a75c1d5e45bb2d1a8bef4af1ba2b03a2d..bd0619a55c0affccdf639b932d047eeea349c0d8 100644
--- a/patches/002-login-without-domain.patch
+++ b/patches/002-login-without-domain.patch
@@ -4,7 +4,7 @@
  			return $this->generateRedirect($redirect_url);
  		}
  
-+		$user = mb_strtolower(trim($user), "UTF-8");
++		$user = trim($user);
 +		$domain = $this->config->getSystemValue("mail_domain");
 +		$domain_suffix = "@$domain";
 +		$admin_username = $_ENV["NEXTCLOUD_ADMIN_USER"];