diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 72699cad03..6037fce4c3 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -39,7 +39,7 @@ jobs:
            git config --local user.name "GitHub Action"
           
       - name: mkdocs deploy latest
-        if: contains(github.ref, "refs/heads/"))
+        if: contains(github.ref, "refs/heads/")
         run: | 
            mike deploy --push --force --update-aliases latest