diff --git a/src/chat-dialog.hpp b/src/chat-dialog.hpp
index 919c511..6510297 100644
--- a/src/chat-dialog.hpp
+++ b/src/chat-dialog.hpp
@@ -132,16 +132,11 @@
   receiveChatMessage(QString nick, QString text, time_t timestamp);
 
   void
-  addSession(QString sessionPrefix, QString nick, time_t timestamp);
-
-  void
   removeSession(QString sessionPrefix, QString nick, time_t timestamp);
 
   void
-  updateNick(QString sessionPrefix, QString nick);
-
-  void
-  receiveMessage(QString sessionPrefix);
+  receiveMessage(QString sessionPrefix, QString nick, uint64_t seqNo, time_t timestamp,
+                 bool addSession);
 
   void
   updateLabels(ndn::Name newChatPrefix);