diff --git a/public/include/classes/user.class.php b/public/include/classes/user.class.php
index 81fefd45..498ac584 100644
--- a/public/include/classes/user.class.php
+++ b/public/include/classes/user.class.php
@@ -863,7 +863,7 @@ class User extends Base {
     $this->debug->append("STA " . __METHOD__, 4);
     // Fetch the users mail address
     if (empty($username)) {
-      $this->serErrorMessage("Username must not be empty");
+      $this->setErrorMessage("Username must not be empty");
       return false;
     }
     if (filter_var($username, FILTER_VALIDATE_EMAIL)) {