diff --git a/test/bptr_value.hpp b/test/bptr_value.hpp
index a2995d3..d4313c5 100644
--- a/test/bptr_value.hpp
+++ b/test/bptr_value.hpp
@@ -18,6 +18,8 @@
 #include <iostream>
 #include "bounded_pointer.hpp"
 #include "common_functors.hpp"
+#include "int_holder.hpp"
+#include <boost/intrusive/link_mode.hpp>
 
 
 namespace boost {
diff --git a/test/int_holder.hpp b/test/int_holder.hpp
index cff862e..d1209cc 100644
--- a/test/int_holder.hpp
+++ b/test/int_holder.hpp
@@ -12,6 +12,8 @@
 #ifndef BOOST_INTRUSIVE_DETAIL_INT_HOLDER_HPP
 #define BOOST_INTRUSIVE_DETAIL_INT_HOLDER_HPP
 
+#include <boost/functional/hash/hash.hpp>
+
 namespace boost{
 namespace intrusive{
 
@@ -96,7 +98,7 @@ struct int_holder_key_of_value
 {
    typedef int_holder type;
 
-   type operator()(const ValueType &tv)
+   type operator()(const ValueType &tv) const
    {  return tv.get_int_holder();  }
 };