--- libprelude-3.0.0/bindings/c++/include/prelude.hxx	2016-04-22 23:26:56.622000362 +0200
+++ libprelude-3.0.0/bindings/c++/include/prelude.hxx	2016-05-01 08:21:00.407439903 +0200
@@ -26,6 +26,8 @@ 
 #ifndef _LIBPRELUDE_PRELUDE_HXX
 #define _LIBPRELUDE_PRELUDE_HXX
 
+#include <stddef.h>
+
 #include "prelude-client.hxx"
 #include "prelude-client-easy.hxx"
 #include "prelude-connection.hxx"