diff --git a/docs/guides/dns/unbound.md b/docs/guides/dns/unbound.md
index c4676563..0aff8b93 100644
--- a/docs/guides/dns/unbound.md
+++ b/docs/guides/dns/unbound.md
@@ -219,7 +219,7 @@ sudo systemctl stop unbound-resolvconf.service
 Disable the file resolvconf_resolvers.conf from being generated when resolvconf is invoked elsewhere.
 
 ```bash
-sudo cat /etc/resolvconf.conf  | sed -E 's/^unbound_conf=(.*)/#unbound_conf=\1/' > /etc/resolvconf.conf
+sudo sed -Ei 's/^unbound_conf=/#unbound_conf=/' /etc/resolvconf.conf
 sudo rm /etc/unbound/unbound.conf.d/resolvconf_resolvers.conf
 ```