diff --git a/configuration/nginx.nix b/configuration/nginx.nix
index 5315ae6..14ba9d9 100644
--- a/configuration/nginx.nix
+++ b/configuration/nginx.nix
@@ -50,4 +50,11 @@
     defaults.email = "tm@tlater.net";
     acceptTerms = true;
   };
+
+  services.backups.acme = {
+    user = "acme";
+    paths =
+      lib.mapAttrsToList (virtualHost: _: "/var/lib/acme/${virtualHost}")
+      config.services.nginx.virtualHosts;
+  };
 }