diff --git a/include/boost/type_traits/has_minus.hpp b/include/boost/type_traits/has_minus.hpp
index 6744f72..3f6271a 100644
--- a/include/boost/type_traits/has_minus.hpp
+++ b/include/boost/type_traits/has_minus.hpp
@@ -149,9 +149,10 @@ namespace boost
 #undef BOOST_TT_TRAIT_OP
 #undef BOOST_TT_FORBIDDEN_IF
 
+#endif
+
 #if defined(BOOST_MSVC)
 #   pragma warning (pop)
 #endif
 
 #endif
-#endif
diff --git a/include/boost/type_traits/has_minus_assign.hpp b/include/boost/type_traits/has_minus_assign.hpp
index a944ffa..936ffed 100644
--- a/include/boost/type_traits/has_minus_assign.hpp
+++ b/include/boost/type_traits/has_minus_assign.hpp
@@ -154,9 +154,10 @@ namespace boost
 #undef BOOST_TT_TRAIT_OP
 #undef BOOST_TT_FORBIDDEN_IF
 
+#endif
+
 #if defined(BOOST_MSVC)
 #   pragma warning (pop)
 #endif
 
 #endif
-#endif
diff --git a/include/boost/type_traits/has_plus_assign.hpp b/include/boost/type_traits/has_plus_assign.hpp
index 66d6c31..cf012e2 100644
--- a/include/boost/type_traits/has_plus_assign.hpp
+++ b/include/boost/type_traits/has_plus_assign.hpp
@@ -152,9 +152,10 @@ namespace boost
 #undef BOOST_TT_TRAIT_OP
 #undef BOOST_TT_FORBIDDEN_IF
 
+#endif
+
 #if defined(BOOST_MSVC)
 #   pragma warning (pop)
 #endif
 
 #endif
-#endif