diff --git a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
index 8712c1e711c8..4d51ee553d70 100644
--- a/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
+++ b/llvm/utils/gn/secondary/libcxx/include/BUILD.gn
@@ -326,6 +326,7 @@ if (current_toolchain == default_toolchain) {
       "__iterator/iterator_traits.h",
       "__iterator/mergeable.h",
       "__iterator/move_iterator.h",
+      "__iterator/move_sentinel.h",
       "__iterator/next.h",
       "__iterator/ostream_iterator.h",
       "__iterator/ostreambuf_iterator.h",