diff --git a/README.md b/README.md
index cfadd34..55c94e8 100644
--- a/README.md
+++ b/README.md
@@ -52,6 +52,14 @@ $ git clone git@gitlab.com:adouglas/minecraft-systemd-services.git
 ```console
 $ cd minecraft-systemd-services
 ```
+1. Edit each applicable unit file(s).
+  - Ensure paths are correct (ReadWriteDirectories, WorkingDirectory, ExecStart,
+ExecStop).
+  - Ensure timers property "OnUnitActiveSec" (backup interval) is set as
+desired.
+```console
+$ nano minecraft-backup.service
+```
 1. Set file permissions.
 ```console
 $ chmod 644 minecraft-\*