diff --git a/nixos/modules/services/networking/bird.nix b/nixos/modules/services/networking/bird.nix
index 77e0b3f8af9b..9deeb7694d2a 100644
--- a/nixos/modules/services/networking/bird.nix
+++ b/nixos/modules/services/networking/bird.nix
@@ -61,7 +61,7 @@ in
       checkPhase = optionalString cfg.checkConfig ''
         ln -s $out bird2.conf
         ${cfg.preCheckConfig}
-        ${pkgs.bird}/bin/bird -d -p -c bird2.conf
+        ${pkgs.buildPackages.bird}/bin/bird -d -p -c bird2.conf
       '';
     };