diff --git a/src/internet-stack/ipv4-l3-protocol.cc b/src/internet-stack/ipv4-l3-protocol.cc
index 5b80bc7eb..d42484f51 100644
--- a/src/internet-stack/ipv4-l3-protocol.cc
+++ b/src/internet-stack/ipv4-l3-protocol.cc
@@ -196,6 +196,7 @@ Ipv4L3Protocol::DoDispose (void)
       *i = 0;
     }
   m_interfaces.clear ();
+  m_sockets.clear ();
   m_node = 0;
   m_routingProtocol = 0;
   Object::DoDispose ();