diff --git a/net/adguardhome/Makefile b/net/adguardhome/Makefile
index 02cbd10b5d..8d9f1fed81 100644
--- a/net/adguardhome/Makefile
+++ b/net/adguardhome/Makefile
@@ -1,7 +1,4 @@
-#
-# This is free software, licensed under the GNU General Public License v2.
-# See /LICENSE for more information.
-#
+# SPDX-License-Identifier: GPL-2.0-only
 
 include $(TOPDIR)/rules.mk
 
diff --git a/net/adguardhome/files/adguardhome.defaults b/net/adguardhome/files/adguardhome.defaults
index e98fee5b78..d19d531eee 100644
--- a/net/adguardhome/files/adguardhome.defaults
+++ b/net/adguardhome/files/adguardhome.defaults
@@ -1,4 +1,6 @@
 #!/bin/sh
+#
+# SPDX-License-Identifier: GPL-2.0-only
 
 # Migrate old config format only
 OLD_CONFIG_FILE=$(uci -q get adguardhome.config.config)
diff --git a/net/adguardhome/files/adguardhome.init b/net/adguardhome/files/adguardhome.init
index 6ab10dec52..3330d51a59 100644
--- a/net/adguardhome/files/adguardhome.init
+++ b/net/adguardhome/files/adguardhome.init
@@ -1,4 +1,7 @@
 #!/bin/sh /etc/rc.common
+#
+# SPDX-License-Identifier: GPL-2.0-only
+#
 # shellcheck disable=SC3043 # ash supports local
 
 PROG=/usr/bin/AdGuardHome
diff --git a/net/adguardhome/test.sh b/net/adguardhome/test.sh
index c9c4962efc..5c277d4d15 100755
--- a/net/adguardhome/test.sh
+++ b/net/adguardhome/test.sh
@@ -1,3 +1,5 @@
 #!/bin/sh
+#
+# SPDX-License-Identifier: GPL-2.0-only
 
 AdGuardHome --version | grep -F "$PKG_VERSION"