diff --git a/.github/workflows/ghcr-publish.yaml b/.github/workflows/ghcr-publish.yaml
index 5e70bc9..24f9f1e 100644
--- a/.github/workflows/ghcr-publish.yaml
+++ b/.github/workflows/ghcr-publish.yaml
@@ -1,3 +1,5 @@
+# This is a templated file and must be kept up-to-date with the original
+# from upstream at https://github.com/canonical/se-tooling-ci-common.
 name: Publish to ghcr.io
 
 on: