1 files changed, 1 insertions, 1 deletions
diff --git a/osp/impl/service_listener_impl.h b/osp/impl/service_listener_impl.h
index b94dcdb1..9516ff18 100644
--- a/osp/impl/service_listener_impl.h
+++ b/osp/impl/service_listener_impl.h
@@ -22,7 +22,6 @@ class ServiceListenerImpl final : public ServiceListener,
   class Delegate {
    public:
     Delegate();
-    virtual ~Delegate();
 
     void SetListenerImpl(ServiceListenerImpl* listener);
 
@@ -34,6 +33,7 @@ class ServiceListenerImpl final : public ServiceListener,
     virtual void SearchNow(State from) = 0;
 
    protected:
+    virtual ~Delegate();
     void SetState(State state) { listener_->SetState(state); }
 
     ServiceListenerImpl* listener_ = nullptr;