diff --git a/include/boost/type_traits/ice.hpp b/include/boost/type_traits/ice.hpp
index 321c121..36e0e2e 100644
--- a/include/boost/type_traits/ice.hpp
+++ b/include/boost/type_traits/ice.hpp
@@ -56,18 +56,25 @@ struct ice_and<true, true, true, true, true, true, true>
    BOOST_STATIC_CONSTANT(bool, value = true);
 };
 
-template <bool b1, bool b2>
+template <int b1, int b2>
 struct ice_eq
 {
    BOOST_STATIC_CONSTANT(bool, value = (b1 == b2));
 };
 
-template <bool b1, bool b2>
+template <int b1, int b2>
 struct ice_ne
 {
    BOOST_STATIC_CONSTANT(bool, value = (b1 != b2));
 };
 
+#ifndef BOOST_NO_INCLASS_MEMBER_INITIALIZATION
+template <int b1, int b2>
+const bool ice_eq<b1,b2>::value;
+template <int b1, int b2>
+const bool ice_ne<b1,b2>::value;
+#endif
+
 } // namespace type_traits
 
 } // namespace boost