diff --git a/ci-root.nix b/ci-root.nix
index b1c4af6dca..9d22549d6d 100644
--- a/ci-root.nix
+++ b/ci-root.nix
@@ -45,6 +45,6 @@ let
       };
     };
     aarch64-darwin = x86_64-darwin;
-  }.${builtins.currentSystem};
+  }.${system};
 in
 pkgs.linkFarm "ci" (builtins.concatLists (lib.mapAttrsToList prefixAttrs ciBits))