diff --git a/pkgs/development/python-modules/dicom-numpy/default.nix b/pkgs/development/python-modules/dicom-numpy/default.nix
index c1248ad21486..87fca9a1b6a8 100644
--- a/pkgs/development/python-modules/dicom-numpy/default.nix
+++ b/pkgs/development/python-modules/dicom-numpy/default.nix
@@ -24,7 +24,7 @@ buildPythonPackage rec {
     pydicom
   ];
 
-  checkInputs = [
+  nativeCheckInputs = [
     pytestCheckHook
   ];