diff --git a/src/Input/FGJoystickInput.cxx b/src/Input/FGJoystickInput.cxx
index 4074431dc..16a2fdc6d 100644
--- a/src/Input/FGJoystickInput.cxx
+++ b/src/Input/FGJoystickInput.cxx
@@ -22,12 +22,14 @@
 //
 // $Id$
 
-#ifdef HAVE_CONFIG_H
-#  include "config.h"
-#endif
+#include "config.h"
 
 #include "FGJoystickInput.hxx"
 
+#if defined(SG_WINDOWS)
+#  include <windows.h>
+#endif
+
 #include <simgear/props/props_io.hxx>
 #include "FGDeviceConfigurationMap.hxx"
 #include <Main/fg_props.hxx>