diff --git a/nixos/environment.nix b/nixos/environment.nix
index a0771119..2bd4b3e8 100644
--- a/nixos/environment.nix
+++ b/nixos/environment.nix
@@ -3,7 +3,7 @@ with lib;
 {
   options = {
     dotfiles-directory = mkOption {
-      type = types.str;
+      type = types.path;
       default = ../.;
     };
   };