diff --git a/.github/workflows/mdlint.yml b/.github/workflows/mdlint.yml
index 5c2db7b..901286b 100644
--- a/.github/workflows/mdlint.yml
+++ b/.github/workflows/mdlint.yml
@@ -14,5 +14,5 @@ jobs:
       - name: markdownlint-cli
         uses: nosborn/github-action-markdown-cli@v1.1.1
         with:
-          files: **/*.md
+          files: '**/*.md'
           config_file: ".markdownlint.json"