diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4c86c67d..58a94c13 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
         uses: hadolint/hadolint-action@master
         with:
           dockerfile: extras/docker/Dockerfile
-          ignore: DL3006 DL3008 DL3018 DL3033 DL4006 SC3037
+          ignore: DL3006,DL3008,DL3018,DL3033,DL4006,SC3037
 
   lint-markdown:
     name: Lint Markdown