diff --git a/src/game/boe.locutils.hpp b/src/game/boe.locutils.hpp
index f57c82cb..ecf6e0c5 100644
--- a/src/game/boe.locutils.hpp
+++ b/src/game/boe.locutils.hpp
@@ -1,4 +1,7 @@
 
+#include <functional>
+#include "location.hpp"
+
 bool is_explored(short i,short j);
 void make_explored(short i,short j);
 void take_explored(short i,short j);