diff --git a/src/Auth.php b/src/Auth.php
index a0fddc4..c638a1c 100644
--- a/src/Auth.php
+++ b/src/Auth.php
@@ -442,7 +442,7 @@ final class Auth extends UserManager {
 	/**
 	 * Clears an existing directive that keeps the user logged in ("remember me")
 	 *
-	 * @param int $userId the user ID that shouldn't be kept signed in anymore
+	 * @param int $userId the ID of the user who shouldn't be kept signed in anymore
 	 * @throws AuthError if an internal problem occurred (do *not* catch)
 	 */
 	private function deleteRememberDirectiveForUserById($userId) {