diff --git a/libcxx/include/CMakeLists.txt b/libcxx/include/CMakeLists.txt
index 629742cbaee764..a9c6e2e4999537 100644
--- a/libcxx/include/CMakeLists.txt
+++ b/libcxx/include/CMakeLists.txt
@@ -542,8 +542,8 @@ set(files
   __memory/ranges_uninitialized_algorithms.h
   __memory/raw_storage_iterator.h
   __memory/shared_ptr.h
-  __memory/start_lifetime_as_array.h
   __memory/start_lifetime_as.h
+  __memory/start_lifetime_as_array.h
   __memory/swap_allocator.h
   __memory/temp_value.h
   __memory/temporary_buffer.h