diff --git a/poky/meta/classes/sign_ipk.bbclass b/poky/meta/classes/sign_ipk.bbclass
index e5057b7..51c24b3 100644
--- a/poky/meta/classes/sign_ipk.bbclass
+++ b/poky/meta/classes/sign_ipk.bbclass
@@ -1,3 +1,9 @@
+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
 # Class for generating signed IPK packages.
 #
 # Configuration variables used by this class: