diff --git a/include/wx/qt/window.h b/include/wx/qt/window.h
index df402a42d4..3a07aed4c4 100644
--- a/include/wx/qt/window.h
+++ b/include/wx/qt/window.h
@@ -11,6 +11,9 @@
 
 #include <list>
 
+class QShortcut;
+template < class T > class QList;
+
 class QWidget;
 class QScrollWindow;
 class QAbstractScrollArea;