diff --git a/libcxx/include/map b/libcxx/include/map
index f533d8f4b8a9..5534e407e560 100644
--- a/libcxx/include/map
+++ b/libcxx/include/map
@@ -846,7 +846,6 @@ public:
     explicit map(const key_compare& __comp)
         _NOEXCEPT_(
             is_nothrow_default_constructible<allocator_type>::value &&
-            is_nothrow_default_constructible<key_compare>::value &&
             is_nothrow_copy_constructible<key_compare>::value)
         : __tree_(__vc(__comp)) {}
 
@@ -1587,7 +1586,6 @@ public:
     explicit multimap(const key_compare& __comp)
         _NOEXCEPT_(
             is_nothrow_default_constructible<allocator_type>::value &&
-            is_nothrow_default_constructible<key_compare>::value &&
             is_nothrow_copy_constructible<key_compare>::value)
         : __tree_(__vc(__comp)) {}
 
diff --git a/libcxx/include/set b/libcxx/include/set
index 7dbf97095e24..b9e776d4a0a7 100644
--- a/libcxx/include/set
+++ b/libcxx/include/set
@@ -436,7 +436,6 @@ public:
     explicit set(const value_compare& __comp)
         _NOEXCEPT_(
             is_nothrow_default_constructible<allocator_type>::value &&
-            is_nothrow_default_constructible<key_compare>::value &&
             is_nothrow_copy_constructible<key_compare>::value)
         : __tree_(__comp) {}
 
@@ -842,7 +841,6 @@ public:
     explicit multiset(const value_compare& __comp)
         _NOEXCEPT_(
             is_nothrow_default_constructible<allocator_type>::value &&
-            is_nothrow_default_constructible<key_compare>::value &&
             is_nothrow_copy_constructible<key_compare>::value)
         : __tree_(__comp) {}