diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 967f27a02f..fd9c2993ad 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -116,7 +116,7 @@ jobs:
     concurrency: ${{ github.workflow }}-${{ github.ref }}
     runs-on: ubuntu-latest
     env:
-      VUEPRESS_BASE_URL: ${{ fromJSON('[format("/${0}/", needs.get-branch-name.outputs.current_branch), "/"]')[github.ref == 'refs/heads/production'] }}
+      VUEPRESS_BASE_URL: ${{ fromJSON('[format("/{0}/", needs.get-branch-name.outputs.current_branch), "/"]')[github.ref == 'refs/heads/production'] }}
     steps:
       - name: Checkout
         uses: actions/checkout@v4