diff --git a/nixos/roles/laminar/projects.nix b/nixos/roles/laminar/projects.nix
index e99b76ff..57de6fd9 100644
--- a/nixos/roles/laminar/projects.nix
+++ b/nixos/roles/laminar/projects.nix
@@ -11,7 +11,7 @@
       export PATH=${lib.makeBinPath path}:$PATH
       git clone git@localhost:${name} .
       git show -q --oneline
-      export FLAGS="--builders @$(${pkgs.builders-configurator}/bin/builders-configurators) -o /var/cache/gc-links/$JOB"
+      export FLAGS="--builders @$(${pkgs.builders-configurator}/bin/builders-configurator) -o /var/cache/gc-links/$JOB"
       if [[ -e "flake.nix" ]]; then
         echo "Flake detected."
         echo "Running 'flake check'"
diff --git a/nixos/roles/laminar/test-config.hs b/nixos/roles/laminar/test-config.hs
index efdb1e40..a99cc87d 100644
--- a/nixos/roles/laminar/test-config.hs
+++ b/nixos/roles/laminar/test-config.hs
@@ -19,7 +19,7 @@ import Say
 import Shh
 import System.Environment (getEnv)
 
-load Absolute ["laminarc", "git", "nix"]
+load Absolute ["laminarc", "git", "nix", "builders-configurator"]
 
 repo = "git@hera.m-0.eu:nixos-config"
 
@@ -32,8 +32,9 @@ main = do
   git "clone" repo "."
   git "checkout" (toString branch)
   say "Running checks"
-  nix "flake" "check" "--builders" "@/etc/nix/machines" "--accept-flake-config"
-  nix ["build", ".#checks.x86_64-linux.system-checks", "-o", "/var/cache/gc-links/test-config", "--builders", "@/etc/nix/machines", "--accept-flake-config"]
+  builders <- builders_configurator |> captureTrim
+  nix "flake" "check" "--builders" ([i|@#{builders}|] :: String) "--accept-flake-config"
+  nix ["build", ".#checks.x86_64-linux.system-checks", "-o", "/var/cache/gc-links/test-config", "--builders", [i|@#{builders}|], "--accept-flake-config"]
   say "Checks succeeded"
   when (branch == "main") $ do
     say [i|Deploying new config to localhost.|]
diff --git a/nixos/roles/laminar/test-config.nix b/nixos/roles/laminar/test-config.nix
index 4218a863..63a0399d 100644
--- a/nixos/roles/laminar/test-config.nix
+++ b/nixos/roles/laminar/test-config.nix
@@ -4,7 +4,7 @@
   config,
   ...
 }: let
-  bins = lib.attrValues {inherit (pkgs) git nix gnutar xz gzip openssh laminar;};
+  bins = lib.attrValues {inherit (pkgs) git nix gnutar xz gzip openssh laminar builders-configurator;};
   standardPath = lib.makeBinPath bins;
   systems = builtins.attrNames (builtins.readDir ../../machines);
   homes = lib.attrNames (import ../../../home-manager/machines.nix);