diff --git a/.github/workflows/tf-acc-test.yaml b/.github/workflows/tf-acc-test.yaml
index 69b01686..bf2e2e0c 100644
--- a/.github/workflows/tf-acc-test.yaml
+++ b/.github/workflows/tf-acc-test.yaml
@@ -24,6 +24,8 @@ jobs:
 
       - name: Run Test
         uses: ./.github/actions/acc_test
+        env:
+          TF_ACC_SERVICE_ACCOUNT_FILE: ~/.stackit/credentials.json
         with:
           go-version: ${{ env.GO_VERSION }}
           project_id: ${{ vars.TEST_PROJECT_ID }}