diff --git a/systemd/system/fstrim.timer.d/local.conf b/systemd/system/fstrim.timer.d/local.conf
new file mode 100644
index 0000000..ceef7dc
--- /dev/null
+++ b/systemd/system/fstrim.timer.d/local.conf
@@ -0,0 +1,6 @@
+[Unit]
+Description=Discard unused filesystem blocks once a day
+
+[Timer]
+OnCalendar=
+OnCalendar=daily