diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 783c446b..f0efb060 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -105,7 +105,8 @@ jobs:
         with:
           workload_identity_provider: projects/297925809119/locations/global/workloadIdentityPools/gha-pool/providers/gha-provider
           service_account: github-actions-testing-for-gam@gam-project-wyo-lub-ivl.iam.gserviceaccount.com
-          access_token_scopes: "https://www.googleapis.com/auth/iam"
+          access_token_scopes: https://www.googleapis.com/auth/iam
+          token_format: access_token
 
       - name: Cache multiple paths
         if: matrix.goal == 'build'