diff --git a/tools/profiling/Hook.php b/tools/profiling/Hook.php
index 9e69e66dd..b5da985db 100644
--- a/tools/profiling/Hook.php
+++ b/tools/profiling/Hook.php
@@ -47,7 +47,7 @@ class Hook extends HookCore
 	{
 		$memoryUsage = memory_get_usage();
 		$t0 = microtime(true);
-		$result = parent::exec($hook_name, $hookArgs, $id_module, $array_return, $check_exceptions);
+		$result = parent::exec($hook_name, $hook_args, $id_module, $array_return, $check_exceptions);
 		self::$hookTime[$hook_name] = microtime(true) - $t0;
 		self::$hookMemoryUsage[$hook_name] = memory_get_usage() - $memoryUsage;
 		return $result;