nixos: fix some types

1 files changed, 2 insertions, 2 deletions

diff --git a/nixos/modules/tasks/filesystems.nix b/nixos/modules/tasks/filesystems.nix
index ce21d9fe7621..ce9e3555b6cd 100644
--- a/nixos/modules/tasks/filesystems.nix
+++ b/nixos/modules/tasks/filesystems.nix
@@ -22,14 +22,14 @@ let
       device = mkOption {
         default = null;
         example = "/dev/sda";
-        type = types.uniq (types.nullOr types.string);
+        type = types.nullOr types.str;
         description = "Location of the device.";
       };
 
       label = mkOption {
         default = null;
         example = "root-partition";
-        type = types.uniq (types.nullOr types.string);
+        type = types.nullOr types.str;
         description = "Label of the device (if any).";
       };