diff --git a/src/firekit.ts b/src/firekit.ts
index 1ed1ad5b..6f763b0a 100644
--- a/src/firekit.ts
+++ b/src/firekit.ts
@@ -1806,10 +1806,9 @@ export class RoarFirekit {
       sequential: sequential,
       tags: tags,
       legal: legal,
+      testData: isTestData ?? false,
     };
 
-    if (isTestData) administrationData.testData = true;
-
     await runTransaction(this.admin!.db, async (transaction) => {
       let administrationDocRef: DocumentReference;
       if (administrationId !== undefined) {