diff --git a/hosts/nero/hardware.nix b/hosts/nero/hardware.nix
index be8a12e..71e85c0 100644
--- a/hosts/nero/hardware.nix
+++ b/hosts/nero/hardware.nix
@@ -32,8 +32,8 @@
     fsType = "sshfs";
 
     options = [
-      "uid=${config.users.users.frank.uid}"
-      "gid=${config.users.groups.users.gid}"
+      "uid=${builtins.toString config.users.users.frank.uid}"
+      "gid=${builtins.toString config.users.groups.users.gid}"
       "default_permissions"
       "allow_other"
       "_netdev"