diff --git a/Source/WXDialog/wxincludes.h b/Source/WXDialog/wxincludes.h
index e673aab0c..70082994e 100644
--- a/Source/WXDialog/wxincludes.h
+++ b/Source/WXDialog/wxincludes.h
@@ -30,6 +30,7 @@
 
 
 #include "wx/defs.h"
+
 #include "wx/app.h"
 #include "wx/button.h"
 #include "wx/checkbox.h"
@@ -45,12 +46,15 @@
 #include "wx/statbox.h"
 #include "wx/stattext.h"
 #include "wx/textctrl.h"
+#include "wx/timer.h"
 
 #pragma hdrstop("wxincludes.pch")
 
 #else
 
 
+#include "wx/defs.h"
+
 #include "wx/app.h"
 #include "wx/button.h"
 #include "wx/checkbox.h"