diff --git a/.github/actions/docker/action.yml b/.github/actions/docker/action.yml
index fd66a335..00a3db7d 100644
--- a/.github/actions/docker/action.yml
+++ b/.github/actions/docker/action.yml
@@ -133,6 +133,7 @@ runs:
         # cache-to: type=gha,mode=max
         file: ${{ inputs.FILE }}
         context: ${{ inputs.CONTEXT }}
+        # cannot use multiple platforms with `load`, build a single arch image for validation purposes in CI
         platforms: linux/amd64
         build-args: ${{ env.BUILD_ARGS }}
         secrets: ${{ env.DOCKER_SECRETS }}