diff --git a/.github/workflows/demo.yml b/.github/workflows/demo.yml
index f46ef5c..74f8d79 100644
--- a/.github/workflows/demo.yml
+++ b/.github/workflows/demo.yml
@@ -22,10 +22,10 @@ jobs:
       - uses: franzdiebold/github-env-vars-action@v1.1.0
       - name: Print environment variables
         run: |
-          echo "GITHUB_REPOSITORY_OWNER=$GITHUB_REPOSITORY_OWNER"
-          echo "GITHUB_REPOSITORY_NAME=$GITHUB_REPOSITORY_NAME"
-          echo "GITHUB_REF_NAME=$GITHUB_REF_NAME"
-          echo "GITHUB_SHA_SHORT=$GITHUB_SHA_SHORT"
+          echo "GITHUB_REPOSITORY_OWNER=%GITHUB_REPOSITORY_OWNER%"
+          echo "GITHUB_REPOSITORY_NAME=%GITHUB_REPOSITORY_NAME%"
+          echo "GITHUB_REF_NAME=%GITHUB_REF_NAME%"
+          echo "GITHUB_SHA_SHORT=%GITHUB_SHA_SHORT%"
 
   macos:
     name: macOS Demo