diff --git a/phpBB/includes/functions_user.php b/phpBB/includes/functions_user.php
index 940018ebad..3db0d9ba96 100644
--- a/phpBB/includes/functions_user.php
+++ b/phpBB/includes/functions_user.php
@@ -357,7 +357,7 @@ function user_delete($mode, $user_ids, $retain_username = true)
 	}
 	$db->sql_freeresult($result);
 
-	if (!$user_rows)
+	if (empty($user_rows))
 	{
 		return false;
 	}