diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 167ed61a..8b43d354 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -13,6 +13,9 @@ on:
 jobs:
   deploy-gh-pages:
     runs-on: ubuntu-latest
+    env:
+      BRANCH_NAME: ${{ github.ref_name }}
+
     steps:
       - name: Checkout
         uses: actions/checkout@v4