diff --git a/.github/workflows/tf-acc-test.yaml b/.github/workflows/tf-acc-test.yaml
index 743a091c..473ad815 100644
--- a/.github/workflows/tf-acc-test.yaml
+++ b/.github/workflows/tf-acc-test.yaml
@@ -13,10 +13,12 @@ on:
     inputs:
       enable_debug:
         description: "enable terraform debug logs"
-        default: 'false'
+        type: boolean
+        default: false
         required: true
       test_timeout_string:
         description: "string that determines the timeout (default: 45m)"
+        type: string
         default: '90m'
         required: true
 
@@ -57,4 +59,3 @@ jobs:
           tf_acc_kek_key_ring_id: ${{ vars.TF_ACC_KEK_KEY_RING_ID }}
           tf_acc_kek_key_version: ${{ vars.TF_ACC_KEK_KEY_VERSION }}
           tf_acc_kek_service_account: ${{ vars.TF_ACC_KEK_SERVICE_ACCOUNT }}
-          tf_debug: ${{ inputs.enable_debug }}