diff --git a/pages/linux/rc-update.md b/pages/linux/rc-update.md
index 225141262..99a3c46b2 100644
--- a/pages/linux/rc-update.md
+++ b/pages/linux/rc-update.md
@@ -2,6 +2,7 @@
 
 > Add and remove OpenRC services to and from runlevels.
 > See also `openrc`.
+> More information: <https://manned.org/rc-update>.
 
 - List all services and the runlevels they are added to: