diff --git a/README.md b/README.md
index a14fa2b..d6f03a4 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,4 @@
 A script that changes your Light Display Manager's background image.
 
 The script is run by the same systemd service that starts LightDM. Just edit your `lightdm.service` by making it execute the `LDM-Wallpaper.sh` script or you can just copy the included `lightdm.service` file to `/etc/systemd/system`. Remember to change the paths used in the script.
+If you use plymouth, edit the `/usr/lib/systemd/system/lightdm-plymouth.service` file instead.