diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 2306898b..5fb1fbcd 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -36,7 +36,7 @@ jobs:
       - name: Output variables to files
         run: |
           echo $GITHUB_REPOSITORY > /tmp/git_repository
-          echo $GITHUB_HEAD_REF > /tmp/git_head_ref
+          echo $GITHUB_REF_NAME > /tmp/git_head_ref
           echo "-----BEGIN OPENSSH PRIVATE KEY-----" >> /tmp/key
           echo ${{ env.BUILD_KEY }} >> /tmp/key
           echo "-----END OPENSSH PRIVATE KEY-----" >> /tmp/key