diff --git a/nixos/tests/os-prober.nix b/nixos/tests/os-prober.nix
index d166bfc8113..b6acc499173 100644
--- a/nixos/tests/os-prober.nix
+++ b/nixos/tests/os-prober.nix
@@ -56,7 +56,7 @@ let
       hashed-mirrors =
       connect-timeout = 1
       '';
-      services.udisks2.enable = lib.mkForce false;
+    services.udisks2.enable = lib.mkForce false;
   };
   # /etc/nixos/configuration.nix for the vm
   configFile = pkgs.writeText "configuration.nix"  ''