diff --git a/client/src/main/java/com/alibaba/nacos/client/naming/remote/gprc/NamingGrpcClientProxy.java b/client/src/main/java/com/alibaba/nacos/client/naming/remote/gprc/NamingGrpcClientProxy.java
index a23f11a07..23736bc35 100644
--- a/client/src/main/java/com/alibaba/nacos/client/naming/remote/gprc/NamingGrpcClientProxy.java
+++ b/client/src/main/java/com/alibaba/nacos/client/naming/remote/gprc/NamingGrpcClientProxy.java
@@ -197,8 +197,8 @@ public class NamingGrpcClientProxy extends AbstractNamingClientProxy {
             throws NacosException {
         try {
             request.putAllHeader(getSecurityHeaders());
-            request.putAllHeader(
-                    getSpasHeaders(NamingUtils.getGroupedName(request.getServiceName(), request.getGroupName())));
+            request.putAllHeader(getSpasHeaders(
+                    NamingUtils.getGroupedNameOptional(request.getServiceName(), request.getGroupName())));
             Response response =
                     requestTimeout < 0 ? rpcClient.request(request) : rpcClient.request(request, requestTimeout);
             if (ResponseCode.SUCCESS.getCode() != response.getResultCode()) {