diff --git a/lib/server.js b/lib/server.js
index ca1452a..66bfee8 100644
--- a/lib/server.js
+++ b/lib/server.js
@@ -74,6 +74,7 @@ class EggRpcServer extends RpcServer {
         service.uniqueId = delegate.uniqueId || '';
         service.version = delegate.version || service.version;
         service.group = delegate.group || service.group;
+        service.groupName = delegate.groupName || service.groupName;
       }
 
       if (is.class(delegate)) {
@@ -121,6 +122,7 @@ class EggRpcServer extends RpcServer {
         interfaceName: service,
         version: this.options.version,
         group: this.options.group,
+        groupName: this.options.groupName,
       };
     }
     // 将 app 传入