diff --git a/feed/mii_mgr/Makefile b/feed/mii_mgr/Makefile
index 166e3f5..50ff42f 100755
--- a/feed/mii_mgr/Makefile
+++ b/feed/mii_mgr/Makefile
@@ -1,7 +1,5 @@
 #
-# hua.shao@mediatek.com
-#
-# MTK Property Software.
+# SPDX-License-Identifier: GPL-2.0
 #
 
 include $(TOPDIR)/rules.mk
diff --git a/feed/regs/Makefile b/feed/regs/Makefile
index d0f2444..239b60c 100755
--- a/feed/regs/Makefile
+++ b/feed/regs/Makefile
@@ -1,7 +1,5 @@
 #
-# hua.shao@mediatek.com
-#
-# MTK Property Software.
+# SPDX-License-Identifier: GPL-2.0
 #
 
 include $(TOPDIR)/rules.mk
diff --git a/feed/switch/Makefile b/feed/switch/Makefile
index 0eb3d7e..b662186 100755
--- a/feed/switch/Makefile
+++ b/feed/switch/Makefile
@@ -1,7 +1,5 @@
 #
-# hua.shao@mediatek.com
-#
-# MTK Property Software.
+# SPDX-License-Identifier: GPL-2.0
 #
 
 include $(TOPDIR)/rules.mk