diff --git a/clanbomber/Controller_Joystick.cpp b/clanbomber/Controller_Joystick.cpp
index 86e26ba..27fc5a6 100644
--- a/clanbomber/Controller_Joystick.cpp
+++ b/clanbomber/Controller_Joystick.cpp
@@ -16,6 +16,7 @@
  ***************************************************************************/
 // $Id: Controller_Joystick.cpp,v 1.1 2001/08/08 21:46:14 der_fisch Exp $
 
+#include <cstddef>
 #include <ClanLib/Core/System/cl_assert.h>
 #include <ClanLib/Display/Input/input.h>
 #include <ClanLib/Display/Input/inputdevice.h>