diff --git a/demo/chatdialog.h b/demo/chatdialog.h
index 7a837dc..e30c05e 100644
--- a/demo/chatdialog.h
+++ b/demo/chatdialog.h
@@ -6,6 +6,8 @@
 #include "ui_chatdialog.h"
 #include "chatbuf.pb.h"
 #include <sync-app-socket.h>
+#include <sync-logic.h>
+#include <sync-seq-no.h>
 
 class ChatDialog : public QDialog,  private Ui::ChatDialog 
 {
@@ -14,13 +16,14 @@
 public:
 	ChatDialog(QWidget *parent = 0);
   void appendMessage(const SyncDemo::ChatMessage &msg);
-  void processData(const std::vector<MissingDataInfo> &, SyncAppSocket *);
+  void processData(const std::vector<Sync::MissingDataInfo> &, Sync::SyncAppSocket *);
 
 private:
   void formChatMessage(const QString &text, SyncDemo::ChatMessage &msg);
 
 private slots:
   void returnPressed();
+  void buttonPressed();
 
 private:
   QString m_nick;