1 files changed, 3 insertions, 3 deletions
diff --git a/pkgs/development/python-modules/cmdstanpy/default.nix b/pkgs/development/python-modules/cmdstanpy/default.nix
index cb31be20a170..6fcf618bafef 100644
--- a/pkgs/development/python-modules/cmdstanpy/default.nix
+++ b/pkgs/development/python-modules/cmdstanpy/default.nix
@@ -49,7 +49,7 @@ buildPythonPackage rec {
     stanio
   ];
 
-  passthru.optional-dependencies = {
+  optional-dependencies = {
     all = [ xarray ];
   };
 
@@ -59,7 +59,7 @@ buildPythonPackage rec {
     export HOME=$(mktemp -d)
   '';
 
-  nativeCheckInputs = [ pytestCheckHook ] ++ passthru.optional-dependencies.all;
+  nativeCheckInputs = [ pytestCheckHook ] ++ optional-dependencies.all;
 
   disabledTestPaths = [
     # No need to test these when using Nix
@@ -77,7 +77,7 @@ buildPythonPackage rec {
       "test_pathfinder_threads"
       "test_save_profile"
     ]
-    ++ lib.optionals stdenv.isDarwin [
+    ++ lib.optionals stdenv.hostPlatform.isDarwin [
       "test_init_types" # CmdStan error: error during processing Operation not permitted
     ];