diff --git a/include/boost/config/stdlib/stlport.hpp b/include/boost/config/stdlib/stlport.hpp
index d4858df7..294f96ed 100644
--- a/include/boost/config/stdlib/stlport.hpp
+++ b/include/boost/config/stdlib/stlport.hpp
@@ -52,7 +52,7 @@
 // then the io stream facets are not available in namespace std::
 //
 #ifdef _STLPORT_VERSION
-#  if !defined(_STLP_OWN_IOSTREAMS) && defined(_STLP_USE_NAMESPACES) && defined(BOOST_NO_USING_TEMPLATE) && !defined(__BORLANDC__)
+#  if !(_STLPORT_VERSION >= 0x500) && !defined(_STLP_OWN_IOSTREAMS) && defined(_STLP_USE_NAMESPACES) && defined(BOOST_NO_USING_TEMPLATE) && !defined(__BORLANDC__)
 #     define BOOST_NO_STD_LOCALE
 #  endif
 #else