diff --git a/test/TorchSharpTest/TestTorchTensor.cs b/test/TorchSharpTest/TestTorchTensor.cs
index 69ba732f3..badd42131 100644
--- a/test/TorchSharpTest/TestTorchTensor.cs
+++ b/test/TorchSharpTest/TestTorchTensor.cs
@@ -3783,7 +3783,7 @@ public void IndexEllipsis()
         public void IndexNull()
         {
             using var i = torch.tensor(new long[] { 0, 1, 2, 6, 5, 4 }, new long[] { 2, 3 });
-            var t1 = i.index(new TensorIndex[] { TensorIndex.None, TensorIndex.Single(0) });
+            var t1 = i.index(new TensorIndex[] { TensorIndex.Null, TensorIndex.Single(0) });
             Assert.Equal(0, t1[0, 0].ToInt32());
             Assert.Equal(1, t1[0, 1].ToInt32());
             Assert.Equal(2, t1[0, 2].ToInt32());