diff --git a/.github/workflows/holonix-cache.yaml b/.github/workflows/holonix-cache.yaml
index 3d6d6ed..2e1b894 100644
--- a/.github/workflows/holonix-cache.yaml
+++ b/.github/workflows/holonix-cache.yaml
@@ -52,7 +52,7 @@ jobs:
         shell: bash
         run: |
           changed_branch=${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}
-          echo "branch=${${{ inputs.branch }}:-$changed_branch}" >> $GITHUB_OUTPUT
+          echo "branch=${"${{ inputs.branch }}":-$changed_branch}" >> $GITHUB_OUTPUT
         id: extract_branch
 
       - name: Print branch