diff --git a/include/boost/detail/basic_pointerbuf.hpp b/include/boost/detail/basic_pointerbuf.hpp
index 6d7893b..f2360ae 100644
--- a/include/boost/detail/basic_pointerbuf.hpp
+++ b/include/boost/detail/basic_pointerbuf.hpp
@@ -24,6 +24,7 @@
 namespace boost { namespace detail {
 
 #ifdef BOOST_MSVC
+#pragma warning(push) 
 // VC mistakenly assumes that `setbuf` and other functions are not referenced.
 #pragma warning(disable: 4505) //Unreferenced local function has been removed
 #endif