diff --git a/GOVERNANCE.adoc b/GOVERNANCE.adoc
index 9942410..e2b30c8 100644
--- a/GOVERNANCE.adoc
+++ b/GOVERNANCE.adoc
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Governance
 
diff --git a/MAINTAINERS.adoc b/MAINTAINERS.adoc
index 2b22774..12091b4 100644
--- a/MAINTAINERS.adoc
+++ b/MAINTAINERS.adoc
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MPL-2.0
+// SPDX-License-Identifier: CC-BY-SA-4.0
 // Copyright (c) Jonathan D.A. Jewell <j.d.a.jewell@open.ac.uk>
 = Maintainers