diff --git a/action.yml b/action.yml
index 826e038..71d2c07 100644
--- a/action.yml
+++ b/action.yml
@@ -49,7 +49,7 @@ runs:
         echo access_token_expiration="${{ steps.auth.outputs.access_token_expiration }}" >> $GITHUB_OUTPUT
         echo id_token="${{ steps.auth.outputs.id_token }}" >> $GITHUB_OUTPUT
     - name: 'Set up Cloud SDK'
-      if: ${{ github.event.inputs.only_auth != 'true' }}
+      if: "${{ github.event.inputs.only_auth != 'true' }}"
       uses: google-github-actions/setup-gcloud@v2
     - name: Debug gcloud auth
       shell: bash