diff --git a/tests/test_amf.cpp b/tests/test_amf.cpp
index 066363c5..48bfbcc1 100644
--- a/tests/test_amf.cpp
+++ b/tests/test_amf.cpp
@@ -1,4 +1,4 @@
-/*
+/*
  * Copyright (c) 2016-present The ZLMediaKit project authors. All Rights Reserved.
  *
  * This file is part of ZLMediaKit(https://github.com/ZLMediaKit/ZLMediaKit).