diff --git a/bind/bind.install b/bind/bind.install
index 5abb795..e95de62 100644
--- a/bind/bind.install
+++ b/bind/bind.install
@@ -9,7 +9,7 @@ post_install() {
 
   # create an rndc.key if it doesn't already exist
   if [ ! -s etc/rndc.key ]; then
-    usr/sbin/rndc-confgen -b 256 | head -n 5 >>etc/rndc.key
+    usr/sbin/rndc-confgen -r /dev/urandom -b 256 | head -n 5 >>etc/rndc.key
     chown root.named etc/rndc.key
     chmod 640 etc/rndc.key
   fi