diff --git a/packages/rpc/src/rpc.ts b/packages/rpc/src/rpc.ts
index b6ecfd2..597e88b 100644
--- a/packages/rpc/src/rpc.ts
+++ b/packages/rpc/src/rpc.ts
@@ -12,6 +12,7 @@ import {
 import { ServiceBroker } from 'moleculer';
 import { CoolRpcConfig } from '.';
 import { CoolCoreException, CoolValidateException } from '@cool-midway/core';
+import { camelCase } from '@midwayjs/core/dist/util/camelCase';
 import { v1 as uuid } from 'uuid';
 import { BaseRpcService } from './service/base';
 import { CurdOption, MOLECYLER_KEY } from './decorator/rpc';
@@ -155,7 +156,7 @@ export class CoolRpc {
 
           const cls = await _this.app
             .getApplicationContext()
-            .getAsync(_.lowerFirst(service));
+            .getAsync(camelCase(service));
           const serviceInstance: BaseRpcService = new target();
           Object.assign(serviceInstance, cls);
           serviceInstance.setModel(_this.getModel(curdOption));