diff --git a/lib/private/User/Manager.php b/lib/private/User/Manager.php
index ca5d90f8c00a0..c872b43933100 100644
--- a/lib/private/User/Manager.php
+++ b/lib/private/User/Manager.php
@@ -724,7 +724,8 @@ public function validateUserId(string $uid, bool $checkDataDirectory = false): v
 
 		// User ID is too long
 		if (strlen($uid) > IUser::MAX_USERID_LENGTH) {
-			throw new \InvalidArgumentException($l->t('Login is too long'));
+		    // TRANSLATORS User ID is too long
+			throw new \InvalidArgumentException($l->t('Username is too long'));
 		}
 
 		if (!$this->verifyUid($uid, $checkDataDirectory)) {