diff --git a/poky/scripts/sstate-diff-machines.sh b/poky/scripts/sstate-diff-machines.sh
index 8b64e11..5ed413b 100755
--- a/poky/scripts/sstate-diff-machines.sh
+++ b/poky/scripts/sstate-diff-machines.sh
@@ -1,5 +1,7 @@
 #!/bin/bash
 #
+# Copyright OpenEmbedded Contributors
+#
 # SPDX-License-Identifier: GPL-2.0-only
 #
 # Used to compare sstate checksums between MACHINES.