diff --git a/src/userland/sys/lsblk.c b/src/userland/sys/lsblk.c
index 55056a2..f0792a5 100644
--- a/src/userland/sys/lsblk.c
+++ b/src/userland/sys/lsblk.c
@@ -1,3 +1,6 @@
+// Copyright (c) 2026 zeyadhost (https://github.com/zeyadhost)
+// This software is released under the GNU General Public License v3.0. See LICENSE file for details.
+// This header needs to maintain in any file it is present in, as per the GPL license terms.
 #include <stdbool.h>
 #include <stddef.h>
 #include <stdint.h>