diff --git a/tools/chatgui/src/mainwindow.cpp b/tools/chatgui/src/mainwindow.cpp
index ff364d17..e4c4e9ab 100644
--- a/tools/chatgui/src/mainwindow.cpp
+++ b/tools/chatgui/src/mainwindow.cpp
@@ -5,6 +5,7 @@
 #include "accountlist.h"
 #include "invitedialog.h"
 #include "dminvitedialog.h"
+#include "debug_ui.h"
 #include "inviteby.h"
 #include "joindialog.h"
 #include "settingsdialog.h"