diff --git a/charls_fix_tests.patch b/charls_fix_tests.patch
new file mode 100644
index 0000000..2ea6291
--- /dev/null
+++ b/charls_fix_tests.patch
@@ -0,0 +1,13 @@
+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
+