diff --git a/sys/kern/kern_fork.c b/sys/kern/kern_fork.c
index 0f5b028ec378..7bb19d764e79 100644
--- a/sys/kern/kern_fork.c
+++ b/sys/kern/kern_fork.c
@@ -98,7 +98,7 @@ vfork(p, uap, retval)
 	struct vfork_args *uap;
 	int retval[];
 {
-	return (fork1(p, (RFFDG|RFPROC|RFPPWAIT), retval));
+	return (fork1(p, (RFFDG|RFPROC|RFPPWAIT|RFMEM), retval));
 }
 
 /* ARGSUSED */