diff --git a/examples/mdev.conf b/examples/mdev.conf
index 51795694d..fab1dc451 100644
--- a/examples/mdev.conf
+++ b/examples/mdev.conf
@@ -34,3 +34,5 @@ fd[0-9]*	0:11 660
 
 sd[a-z]*	0:6 660
 hd[a-z]*	0:6 660
+
+hw_random	0:0 600 =hwrng