diff --git a/contrib/epee/include/net/levin_base.h b/contrib/epee/include/net/levin_base.h
index 4f55b0df..1d7ccb44 100644
--- a/contrib/epee/include/net/levin_base.h
+++ b/contrib/epee/include/net/levin_base.h
@@ -86,9 +86,16 @@ namespace levin
 
     virtual void on_connection_new(t_connection_context& context){};
     virtual void on_connection_close(t_connection_context& context){};
-
   };
 
+  template<class t_connection_context = net_utils::connection_context_base>
+  struct levin_commands_handler_dummy: public levin_commands_handler<t_connection_context>
+  {
+    virtual int invoke(int command, const std::string& in_buff, std::string& buff_out, t_connection_context& context) { return LEVIN_OK; }
+    virtual int notify(int command, const std::string& in_buff, t_connection_context& context) { return LEVIN_OK; }
+  };
+
+
 #define LEVIN_OK                                        0
 #define LEVIN_ERROR_CONNECTION                         -1
 #define LEVIN_ERROR_CONNECTION_NOT_FOUND               -2
diff --git a/contrib/epee/include/net/levin_protocol_handler_async.h b/contrib/epee/include/net/levin_protocol_handler_async.h
index d85fa428..d2c536ba 100644
--- a/contrib/epee/include/net/levin_protocol_handler_async.h
+++ b/contrib/epee/include/net/levin_protocol_handler_async.h
@@ -59,6 +59,7 @@ class async_protocol_handler_config
   critical_section m_connects_lock;
   std::atomic<bool> m_is_in_sendstop_loop;
   connections_map m_connects;
+  levin_commands_handler_dummy<t_connection_context> m_commands_handler_dummy;
 
   void add_connection(async_protocol_handler<t_connection_context>* pc);
   void del_connection(async_protocol_handler<t_connection_context>* pc);
@@ -87,7 +88,7 @@ public:
   bool foreach_connection(callback_t cb);
   size_t get_connections_count();
 
-  async_protocol_handler_config() :m_pcommands_handler(NULL), m_max_packet_size(LEVIN_DEFAULT_MAX_PACKET_SIZE), m_is_in_sendstop_loop(false), m_invoke_timeout{}
+  async_protocol_handler_config() :m_pcommands_handler(&m_commands_handler_dummy), m_max_packet_size(LEVIN_DEFAULT_MAX_PACKET_SIZE), m_is_in_sendstop_loop(false), m_invoke_timeout{}
   {}
   ~async_protocol_handler_config()
   {