diff --git a/src/config/rc-files.md b/src/config/rc-files.md
index 17012a09..0c4e4d12 100644
--- a/src/config/rc-files.md
+++ b/src/config/rc-files.md
@@ -1,8 +1,8 @@
-# rc.conf, rc.local and rc.shutdown
+# rc.conf, rc.local, rc.shutdown and core-services
 
-The files `/etc/rc.conf`, `/etc/rc.local` and `/etc/rc.shutdown` can be used to
-configure certain parts of your Void system. `rc.conf` is often configured by
-`void-installer`.
+The files `/etc/rc.conf`, `/etc/rc.local`, `/etc/rc.shutdown` and the directory
+`/etc/runit/core-services` can be used to configure certain parts of your Void
+system. `rc.conf` is often configured by `void-installer`.
 
 ## rc.conf
 
@@ -51,3 +51,8 @@ configuration to be done prior to login.
 
 Sourced in runit stage 3. A shell script which can be used to specify tasks to
 be done during shutdown.
+
+## core-services
+
+Sourced in runit stage 1. A directory containing shell scripts that are run when
+the machine boots up. Useful for startup oneshots.