diff --git a/.github/workflows/update-doc.yaml b/.github/workflows/update-doc.yaml
index 82e276379..a38c2420c 100644
--- a/.github/workflows/update-doc.yaml
+++ b/.github/workflows/update-doc.yaml
@@ -57,7 +57,7 @@ jobs:
             --ignoreCache
             --cleanDestinationDir
             --noBuildLock
-            --source "${{ env.GITHUB_WORKSPACE }}/hack/hugo/hugo-test"
+            --source $GITHUB_WORKSPACE/hack/hugo/hugo-test"
 
       -
         name: Deploy to GitHub Pages