diff --git a/pdf/.github/workflows/workflow.yml b/pdf/.github/workflows/workflow.yml
index b70811a..28befd2 100644
--- a/pdf/.github/workflows/workflow.yml
+++ b/pdf/.github/workflows/workflow.yml
@@ -9,7 +9,7 @@ jobs:
       - name: Checkout Repository
         uses: actions/checkout@v3
         with:
-          ref: dummy-data    #checkout different branch
+          ref: main    #checkout different branch
 
       - name: Generate Directory Listings
         uses: jayanta525/github-pages-directory-listing@v4.0.0