diff --git a/mach/vax4/libbsd4_1a/cleanup.c b/mach/vax4/libbsd4_1a/cleanup.c
new file mode 100644
index 000000000..6cd9c63e6
--- /dev/null
+++ b/mach/vax4/libbsd4_1a/cleanup.c
@@ -0,0 +1 @@
+_cleanup() { }