diff --git a/root/usr/lib/systemd/system/paccache.timer b/root/usr/lib/systemd/system/paccache.timer
new file mode 100644
index 0000000..8423e18
--- /dev/null
+++ b/root/usr/lib/systemd/system/paccache.timer
@@ -0,0 +1,13 @@
+# Clean pacman cache of old and uninstalled packages every month
+# This needs to be started by systemctl stat paccache.timer
+# Usage requires pacman-contrib package to be installed
+
+[Unit]
+Description=Clean-up old pacman pkg
+
+[Timer]
+OnCalendar=monthly
+Persistent=true
+
+[Install]
+WantedBy=multi-user.target