diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index 7f54ee0..6be38c3 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -12,7 +12,7 @@ jobs:
         id: vars
         run: |
           echo ::set-output name=tag::$(echo ${GITHUB_REF#refs/tags/})
-          echo ::set-output name=branch::$(echo ${GITHUB_REF##*/})
+          echo ::set-output name=branch::$(echo ${GITHUB_REF#refs/heads/})
       - name: Docker Login
         run: echo ${{ secrets.GITHUB_TOKEN }} | docker login https://docker.pkg.github.com -u vulcanize --password-stdin
       - name: Build and push