diff --git a/libcxx/modules/std/atomic.cppm b/libcxx/modules/std/atomic.cppm
--- a/libcxx/modules/std/atomic.cppm
+++ b/libcxx/modules/std/atomic.cppm
@@ -23,9 +23,6 @@
   using std::memory_order_seq_cst;
 
   using std::kill_dependency;
-} // namespace std
-
-namespace std {
 
   // [atomics.ref.generic], class template atomic_ref
   // [atomics.ref.pointer], partial specialization for pointers
diff --git a/libcxx/modules/std/execution.cppm b/libcxx/modules/std/execution.cppm
--- a/libcxx/modules/std/execution.cppm
+++ b/libcxx/modules/std/execution.cppm
@@ -17,7 +17,7 @@
   using std::is_execution_policy_v;
 } // namespace std
 
-namespace std::execution {
+export namespace std::execution {
   // [execpol.seq], sequenced execution policy
   using std::execution::sequenced_policy;
 
diff --git a/libcxx/modules/std/filesystem.cppm b/libcxx/modules/std/filesystem.cppm
--- a/libcxx/modules/std/filesystem.cppm
+++ b/libcxx/modules/std/filesystem.cppm
@@ -110,11 +110,11 @@
 } // namespace std::filesystem
 
 // [fs.path.hash], hash support
-namespace std {
+export namespace std {
   using std::hash;
 }
 
-namespace std::ranges {
+export namespace std::ranges {
   using std::ranges::enable_borrowed_range;
   using std::ranges::enable_view;
 } // namespace std::ranges