diff --git a/include/boost/type_traits/detail/config.hpp b/include/boost/type_traits/detail/config.hpp
index 7c6149e..dd4ec4c 100644
--- a/include/boost/type_traits/detail/config.hpp
+++ b/include/boost/type_traits/detail/config.hpp
@@ -81,7 +81,7 @@
 //
 // Can we implement accurate is_function/is_member_function_pointer (post C++03)?
 //
-#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !BOOST_WORKAROUND(BOOST_GCC, < 40900)\
+#if !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && !BOOST_WORKAROUND(BOOST_GCC, < 40805)\
       && !BOOST_WORKAROUND(BOOST_MSVC, < 1900) && !BOOST_WORKAROUND(__clang_major__, <= 4)
 #  define BOOST_TT_HAS_ASCCURATE_IS_FUNCTION
 #endif