diff --git a/defaulttraits.h b/defaulttraits.h
index 5032f7d..734bcea 100644
--- a/defaulttraits.h
+++ b/defaulttraits.h
@@ -2,7 +2,7 @@
// (C) Jan de Vaan 2007-2010, all rights reserved. See the accompanying "License.txt" for licensed use.
//
-
+#include "header.h"
#ifndef CHARLS_DEFAULTTRAITS
#define CHARLS_DEFAULTTRAITS