diff --git a/modules/system/backups.nix b/modules/system/backups.nix
index b5dec75..d2208dc 100644
--- a/modules/system/backups.nix
+++ b/modules/system/backups.nix
@@ -15,11 +15,9 @@ in
       description = "list of directories to back up";
     };
     jobs = lib.mkOption {
-      type = lib.types.nullOr (
-        lib.types.attrsOf (     # the set up backup jobs
-          lib.types.attrsOf (   # the set of paths
-            lib.types.listOf lib.types.path   # the paths
-          )
+      type = lib.types.attrsOf (     # the set up backup jobs
+        lib.types.attrsOf (   # the set of paths
+          lib.types.listOf lib.types.path   # the paths
         )
       );
       default = null;