diff --git a/.github/workflows/demo-images.yml b/.github/workflows/demo-images.yml
index 72c43ae8..6a08fb8c 100644
--- a/.github/workflows/demo-images.yml
+++ b/.github/workflows/demo-images.yml
@@ -6,6 +6,7 @@ name: Demo images
 #
 # Required repo configuration:
 #   vars.DEMO_REGISTRY        e.g. 146.59.87.168:3000/lfg2025
+#   vars.DEMO_REGISTRY_HOST   registry host for docker login (no org suffix)
 #   secrets.DEMO_REGISTRY_USER
 #   secrets.DEMO_REGISTRY_TOKEN
 # Optional: