diff --git a/systemd/wallpaper@.timer b/systemd/wallpaper@.timer
index 6969762..412193d 100644
--- a/systemd/wallpaper@.timer
+++ b/systemd/wallpaper@.timer
@@ -3,5 +3,5 @@ Description=Wallpaper rotation for %I
 PartOf=graphical-session@%i.target
 
 [Timer]
-OnUnitActiveSec=1h
+OnCalendar=hourly
 RandomizedDelaySec=10m