diff --git a/src/generic/datectlg.cpp b/src/generic/datectlg.cpp
index 6250bbe2ae..50b13ca5f7 100644
--- a/src/generic/datectlg.cpp
+++ b/src/generic/datectlg.cpp
@@ -32,6 +32,9 @@
     #include "wx/valtext.h"
 #endif
 
+#define _WX_DEFINE_DATE_EVENTS_
+#include "wx/dateevt.h"
+
 #include "wx/datectrl.h"
 #include "wx/calctrl.h"