N3123
llvm-svn: 119906
diff --git a/libcxx/include/__tuple b/libcxx/include/__tuple
index 22134a2..72e36fb 100644
--- a/libcxx/include/__tuple
+++ b/libcxx/include/__tuple
@@ -240,7 +240,7 @@
template <class _Tp0, class ..._Tp, class _Up0, class ..._Up>
struct __tuple_assignable_imp<true, __tuple_types<_Tp0, _Tp...>, __tuple_types<_Up0, _Up...>>
: public integral_constant<bool,
- __is_assignable<_Up0&, _Tp0>::value &&
+ is_assignable<_Up0&, _Tp0>::value &&
__tuple_assignable_imp<true, __tuple_types<_Tp...>, __tuple_types<_Up...>>::value> {};
template <>
