diff --git a/nixos/tests/hydra/default.nix b/nixos/tests/hydra/default.nix
index 6ca05a2c7797..43f8052de5f7 100644
--- a/nixos/tests/hydra/default.nix
+++ b/nixos/tests/hydra/default.nix
@@ -30,7 +30,7 @@ let
   callTest = f: f { inherit system pkgs; };
 
   hydraPkgs = {
-    inherit (pkgs) nixStable nixUnstable;
+    inherit (pkgs) nixStable nixUnstable nixFlakes;
   };
 
   tests = pkgs.lib.flip pkgs.lib.mapAttrs hydraPkgs (name: nix: