diff --git a/include/tuple b/include/tuple
index 683c9dd5..a485d7d1 100644
--- a/include/tuple
+++ b/include/tuple
@@ -227,7 +227,7 @@ class __tuple_leaf
 
     __tuple_leaf& operator=(const __tuple_leaf&);
 public:
-    _LIBCPP_INLINE_VISIBILITY __tuple_leaf() : value()
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR __tuple_leaf() : value()
        {static_assert(!is_reference<_Hp>::value,
               "Attempted to default construct a reference element in a tuple");}
 
@@ -347,7 +347,7 @@ class __tuple_leaf<_Ip, _Hp, true>
 
     __tuple_leaf& operator=(const __tuple_leaf&);
 public:
-    _LIBCPP_INLINE_VISIBILITY __tuple_leaf() {}
+    _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR __tuple_leaf() {}
 
     template <class _Alloc>
         _LIBCPP_INLINE_VISIBILITY
@@ -436,6 +436,9 @@ template<size_t ..._Indx, class ..._Tp>
 struct __tuple_impl<__tuple_indices<_Indx...>, _Tp...>
     : public __tuple_leaf<_Indx, _Tp>...
 {
+    _LIBCPP_INLINE_VISIBILITY
+    _LIBCPP_CONSTEXPR __tuple_impl() {}
+
     template <size_t ..._Uf, class ..._Tf,
               size_t ..._Ul, class ..._Tl, class ..._Up>
         _LIBCPP_INLINE_VISIBILITY
@@ -531,6 +534,9 @@ class _LIBCPP_VISIBLE tuple
         typename tuple_element<_Jp, tuple<_Up...> >::type&& get(tuple<_Up...>&&) _NOEXCEPT;
 public:
 
+    _LIBCPP_INLINE_VISIBILITY
+    _LIBCPP_CONSTEXPR tuple() {}
+
     _LIBCPP_INLINE_VISIBILITY
     explicit tuple(const _Tp& ... __t)
         : base_(typename __make_tuple_indices<sizeof...(_Tp)>::type(),
@@ -687,7 +693,7 @@ class _LIBCPP_VISIBLE tuple<>
 {
 public:
     _LIBCPP_INLINE_VISIBILITY
-    tuple() {}
+    _LIBCPP_CONSTEXPR tuple() {}
     template <class _Alloc>
     _LIBCPP_INLINE_VISIBILITY
         tuple(allocator_arg_t, const _Alloc&) {}
diff --git a/test/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp b/test/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
index eb902ac6..84ecd8d2 100644
--- a/test/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
+++ b/test/utilities/tuple/tuple.tuple/tuple.cnstr/default.pass.cpp
@@ -46,4 +46,18 @@ int main()
         assert(std::get<2>(t) == "");
         assert(std::get<3>(t) == DefaultOnly());
     }
+#ifndef _LIBCPP_HAS_NO_CONSTEXPR
+    {
+        constexpr std::tuple<> t;
+    }
+    {
+        constexpr std::tuple<int> t;
+        assert(std::get<0>(t) == 0);
+    }
+    {
+        constexpr std::tuple<int, char*> t;
+        assert(std::get<0>(t) == 0);
+        assert(std::get<1>(t) == nullptr);
+    }
+#endif
 }