diff --git a/nixos/tests/buildbot.nix b/nixos/tests/buildbot.nix
index 1f734199c103..9dfe951e4e5d 100644
--- a/nixos/tests/buildbot.nix
+++ b/nixos/tests/buildbot.nix
@@ -3,7 +3,7 @@
 {
   name = "buildbot";
 
-  nodes = {
+  containers = {
     bbmaster =
       { pkgs, ... }:
       {