diff --git a/.gitea/workflows/demo.yaml b/.gitea/workflows/demo.yaml
index 717e4c1..a80bc25 100644
--- a/.gitea/workflows/demo.yaml
+++ b/.gitea/workflows/demo.yaml
@@ -21,7 +21,7 @@ jobs:
           pwd
           touch testfile
           ls
-          docker run --rm -v '.:.' -w '.' 'aergus/latex' /bin/bash -eo pipefail ls
+          docker run --rm -v "$pwd:$pwd" -w '$pwd' 'aergus/latex' /bin/bash -eo pipefail ls
       - name: compile
         uses: xu-cheng/texlive-action@v2
         with: