diff --git a/src/applications/v4ping/v4ping.cc b/src/applications/v4ping/v4ping.cc
index e70917e60..2e53e5e64 100644
--- a/src/applications/v4ping/v4ping.cc
+++ b/src/applications/v4ping/v4ping.cc
@@ -149,6 +149,7 @@ void
 V4Ping::StopApplication (void)
 {
   NS_LOG_FUNCTION (this);
+  m_socket->Close ();
 }
 
 
diff --git a/src/node/application.cc b/src/node/application.cc
index 753de0847..f89dd7a56 100644
--- a/src/node/application.cc
+++ b/src/node/application.cc
@@ -58,6 +58,7 @@ Application::DoDispose (void)
   m_node = 0;
   Simulator::Cancel(m_startEvent);
   Simulator::Cancel(m_stopEvent);
+  Object::DoDispose ();
 }  
    
 void Application::Start(const Time& startTime)