diff --git a/libs/binder/BackendUnifiedServiceManager.h b/libs/binder/BackendUnifiedServiceManager.h
index 2496f62..c14f280 100644
--- a/libs/binder/BackendUnifiedServiceManager.h
+++ b/libs/binder/BackendUnifiedServiceManager.h
@@ -122,7 +122,8 @@
 
     binder::Status getService(const ::std::string& name, sp<IBinder>* _aidl_return) override;
     binder::Status getService2(const ::std::string& name, os::Service* out) override;
-    binder::Status checkService(const ::std::string& name, os::Service* out) override;
+    binder::Status checkService(const ::std::string& name, sp<IBinder>* _aidl_return) override;
+    binder::Status checkService2(const ::std::string& name, os::Service* out) override;
     binder::Status addService(const ::std::string& name, const sp<IBinder>& service,
                               bool allowIsolated, int32_t dumpPriority) override;
     binder::Status listServices(int32_t dumpPriority,