diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 32eab25..4b7f753 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: MPL-2.0
 # For most projects, this workflow file will not need changing; you simply need
 # to commit it to your repository.
 #