diff --git a/systems/x86_64-linux/attic/atticd.nix b/systems/x86_64-linux/attic/atticd.nix
index 1c5cfad..232c1ea 100644
--- a/systems/x86_64-linux/attic/atticd.nix
+++ b/systems/x86_64-linux/attic/atticd.nix
@@ -61,4 +61,25 @@
       };
     };
   };
+
+  systemd.services.atticd-gc = {
+    description = "Attic garbage collection";
+    requires = [ "atticd.service" ];
+    after = [ "atticd.service" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${pkgs.attic-server}/bin/atticd-atticadm gc";
+      EnvironmentFile = "/etc/atticd.env";
+    };
+  };
+
+  systemd.timers.atticd-gc = {
+    description = "Daily Attic garbage collection";
+    wantedBy = [ "timers.target" ];
+    timerConfig = {
+      OnCalendar = "daily";
+      Persistent = true;
+      RandomizedDelaySec = "1h";
+    };
+  };
 }