diff --git a/tree/ntuple/v7/test/ntuple_types.cxx b/tree/ntuple/v7/test/ntuple_types.cxx
index 599b3f8ee35f90d117589fdc8d97ec9aae577dc2..ba2681529168df3989e0da1b2f5889b6d8832a93 100644
--- a/tree/ntuple/v7/test/ntuple_types.cxx
+++ b/tree/ntuple/v7/test/ntuple_types.cxx
@@ -664,14 +664,14 @@ TEST(RNTuple, TClassTemplateBased)
    FileRaii fileGuard("test_ntuple_tclass_templatebased.ntuple");
    {
       auto model = RNTupleModel::Create();
-      auto fieldKlass = model->MakeField<EdmWrapper<CustomStruct>>("klass");
+      auto fieldObject = model->MakeField<EdmWrapper<CustomStruct>>("klass");
       auto writer = RNTupleWriter::Recreate(std::move(model), "f", fileGuard.GetPath());
       writer->Fill();
-      fieldKlass->fMember.a = 42.0;
-      fieldKlass->fMember.v1.push_back(1.0);
-      fieldKlass->fMember.s = "x";
+      fieldObject->fMember.a = 42.0;
+      fieldObject->fMember.v1.push_back(1.0);
+      fieldObject->fMember.s = "x";
       writer->Fill();
-      fieldKlass->fIsPresent = false;
+      fieldObject->fIsPresent = false;
       writer->Fill();
    }