diff --git a/include/boost/type_traits/is_abstract.hpp b/include/boost/type_traits/is_abstract.hpp
index e8e2db4..c565f08 100755
--- a/include/boost/type_traits/is_abstract.hpp
+++ b/include/boost/type_traits/is_abstract.hpp
@@ -85,12 +85,12 @@ struct is_abstract_imp2
 #ifdef __GNUC__
    BOOST_STATIC_CONSTANT(unsigned, s1 = sizeof(is_abstract_imp2<T>::template check_sig<T>(0)));
 #else
-#if BOOST_WORKAROUND(BOOST_MSVC, > 1400)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
 #pragma warning(push)
 #pragma warning(disable:6334)
 #endif
    BOOST_STATIC_CONSTANT(unsigned, s1 = sizeof(check_sig<T>(0)));
-#if BOOST_WORKAROUND(BOOST_MSVC, > 1400)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
 #pragma warning(pop)
 #endif
 #endif
diff --git a/include/boost/type_traits/is_base_and_derived.hpp b/include/boost/type_traits/is_base_and_derived.hpp
index 28f0c80..6f3add2 100644
--- a/include/boost/type_traits/is_base_and_derived.hpp
+++ b/include/boost/type_traits/is_base_and_derived.hpp
@@ -129,7 +129,7 @@ struct bd_helper
 template<typename B, typename D>
 struct is_base_and_derived_impl2
 {
-#if BOOST_WORKAROUND(BOOST_MSVC, > 1400)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
 #pragma warning(push)
 #pragma warning(disable:6334)
 #endif
@@ -152,7 +152,7 @@ struct is_base_and_derived_impl2
 
     BOOST_STATIC_CONSTANT(bool, value =
         sizeof(bd_helper<B,D>::check_sig(Host(), 0)) == sizeof(type_traits::yes_type));
-#if BOOST_WORKAROUND(BOOST_MSVC, > 1400)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
 #pragma warning(pop)
 #endif
 };
diff --git a/include/boost/type_traits/is_function.hpp b/include/boost/type_traits/is_function.hpp
index 89323f0..93e4846 100644
--- a/include/boost/type_traits/is_function.hpp
+++ b/include/boost/type_traits/is_function.hpp
@@ -62,7 +62,7 @@ struct is_function_impl
 template <typename T>
 struct is_function_impl
 {
-#if BOOST_WORKAROUND(BOOST_MSVC, > 1400)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
 #pragma warning(push)
 #pragma warning(disable:6334)
 #endif
@@ -71,7 +71,7 @@ struct is_function_impl
         bool, value = sizeof(::boost::type_traits::is_function_ptr_tester(t))
         == sizeof(::boost::type_traits::yes_type)
         );
-#if BOOST_WORKAROUND(BOOST_MSVC, > 1400)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
 #pragma warning(pop)
 #endif
 };
diff --git a/include/boost/type_traits/is_member_function_pointer.hpp b/include/boost/type_traits/is_member_function_pointer.hpp
index 01d76e5..deedeea 100644
--- a/include/boost/type_traits/is_member_function_pointer.hpp
+++ b/include/boost/type_traits/is_member_function_pointer.hpp
@@ -62,7 +62,7 @@ struct is_mem_fun_pointer_select<false>
 {
     template <typename T> struct result_
     {
-#if BOOST_WORKAROUND(BOOST_MSVC, > 1400)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
 #pragma warning(push)
 #pragma warning(disable:6334)
 #endif
@@ -73,7 +73,7 @@ struct is_mem_fun_pointer_select<false>
             bool, value = (
                 1 == sizeof(::boost::type_traits::is_mem_fun_pointer_tester(self_type::make_t))
             ));
-#if BOOST_WORKAROUND(BOOST_MSVC, > 1400)
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1400)
 #pragma warning(pop)
 #endif
     };