diff --git a/nixos/modules/services/network-filesystems/yandex-disk.nix b/nixos/modules/services/network-filesystems/yandex-disk.nix
index cc73f13bf77..a5b1f9d4ab6 100644
--- a/nixos/modules/services/network-filesystems/yandex-disk.nix
+++ b/nixos/modules/services/network-filesystems/yandex-disk.nix
@@ -46,12 +46,14 @@ in
 
       user = mkOption {
         default = null;
+        type = types.nullOr types.str;
         description = ''
           The user the yandex-disk daemon should run as.
         '';
       };
 
       directory = mkOption {
+        type = types.path;
         default = "/home/Yandex.Disk";
         description = "The directory to use for Yandex.Disk storage";
       };