diff --git a/include/wx/calctrl.h b/include/wx/calctrl.h
index dc0d4997f7..069cd4723b 100644
--- a/include/wx/calctrl.h
+++ b/include/wx/calctrl.h
@@ -24,6 +24,8 @@
 #if wxUSE_CALENDARCTRL
 
 #include "wx/datetime.h"
+#include "wx/colour.h"
+#include "wx/font.h"
 
 // ----------------------------------------------------------------------------
 // wxCalendarCtrl flags