diff --git a/cpython/pyconfig.undefs.h b/cpython/pyconfig.undefs.h
index 8be9e869d..68a4d0c57 100644
--- a/cpython/pyconfig.undefs.h
+++ b/cpython/pyconfig.undefs.h
@@ -2,3 +2,5 @@
 #undef HAVE_EPOLL_CREATE1
 #undef HAVE_LINUX_VM_SOCKETS_H
 #undef HAVE_SOCKETPAIR
+#undef HAVE_UTIMENSAT
+#undef HAVE_SIGACTION