Correct ifndef and define macros.

diff --git a/src/board_window_state.hxx b/src/board_window_state.hxx
index ed1bb32..863cd55 100644 (file)
--- a/src/board_window_state.hxx
+++ b/src/board_window_state.hxx
@@ -19,7 +19,7 @@
  */
 
 #ifndef BOARD_WINDOW_STATE_HXX
-#define BOARD_WINDOW_STATE_HX_
+#define BOARD_WINDOW_STATE_HXX
 
 #include <boost/serialization/access.hpp>
 #include <boost/serialization/nvp.hpp>