diff --git a/include/transport/NetworkPluginServer.h b/include/transport/NetworkPluginServer.h
index ab64157f0b97f7e1887c007d80d16f525c29f8f1..043e447c2d52e78a6f8a37f851a8a283c81d7189 100644
--- a/include/transport/NetworkPluginServer.h
+++ b/include/transport/NetworkPluginServer.h
@@ -202,6 +202,7 @@ class NetworkPluginServer : Swift::XMPPParserClient {
 		Swift::XMPPSerializer *m_serializer;
 		Swift::FullPayloadSerializerCollection m_collection2;
 		std::map <std::string, std::string> m_id2resource;
+		bool m_firstPong;
 };
 
 }