diff --git a/backend/src/federation/client/Client_1_0.ts b/backend/src/federation/client/Client_1_0.ts
index 317306048..d425ccea1 100644
--- a/backend/src/federation/client/Client_1_0.ts
+++ b/backend/src/federation/client/Client_1_0.ts
@@ -29,7 +29,7 @@ export class Client_1_0 {
     logger.info(`requestGetPublicKey with endpoint='${this.endpoint}'...`)
     try {
       // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
-      const { data, errors, headers, status } = await this.client.rawRequest(getPublicKey)
+      const { data, errors, headers, status } = await this.client.rawRequest(getPublicKey, {})
       logger.debug(`Response-Data:`, data, errors, headers, status)
       if (data) {
         // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access