diff --git a/.github/workflows/deploy-bundle-preview.yml b/.github/workflows/deploy-bundle-preview.yml
index 69d3f7f7..d165456c 100644
--- a/.github/workflows/deploy-bundle-preview.yml
+++ b/.github/workflows/deploy-bundle-preview.yml
@@ -34,7 +34,7 @@ jobs:
                   exit 1
               fi
           }
-          validate_branch_name "${{ github.event.pull_request.head.ref }}"
+          validate_branch_name "${{ github.event.pull_request.head.ref || github.ref_name }}"
 
       - name: Extract Branch Names
         id: extract_branch
@@ -53,7 +53,7 @@ jobs:
           }
 
           # Transform branch names in form of `refs/heads/main` to `main`
-          draft_branch=$(extract_branch "${{ github.event.pull_request.head.ref }}")
+          draft_branch=$(extract_branch "${{ github.event.pull_request.head.ref || github.ref_name }}")
 
           # Replace / with - in the draft branch name to use as a directory name
           draft_directory=$(echo "$draft_branch" | tr / -)