diff --git a/modules/installer/tools/nixos-build-vms/build-vms.nix b/modules/installer/tools/nixos-build-vms/build-vms.nix
index 0b8d2720068..3d49cecb2ed 100644
--- a/modules/installer/tools/nixos-build-vms/build-vms.nix
+++ b/modules/installer/tools/nixos-build-vms/build-vms.nix
@@ -8,6 +8,6 @@
 
 let nodes = import networkExpr;
 in
-with import "${nixos}/lib/testing.nix" { inherit nixpkgs services system useBackdoor; };
+with import "${nixos}/lib/testing.nix" { inherit nixpkgs services system; };
 
 (complete { inherit nodes; testScript = ""; }).driver