diff --git a/test/unit/test_x86op_values.py b/test/unit/test_x86op_values.py
index 0e6587fea0..15a8486c2d 100644
--- a/test/unit/test_x86op_values.py
+++ b/test/unit/test_x86op_values.py
@@ -4,16 +4,21 @@ from tinygrad.renderer.isa import X86Ops, X86GroupOp
 
 class TestX86OpValues(unittest.TestCase):
   def test_values(self):
+    # ADD is added in X86Ops
     assert X86Ops.ADD != Ops.ADD
     assert X86Ops.ADD is not Ops.ADD
-    assert not isinstance(Ops.ADD, X86Ops)
-    assert isinstance(X86Ops.ADD, Ops)
-    assert isinstance(X86Ops.ADD, X86Ops)
     assert Ops.ADD not in X86GroupOp.All
     assert X86Ops.ADD not in GroupOp.All
     assert X86Ops.ADD in X86GroupOp.All
-    # this is now possible but is essentially invalid
+    assert not isinstance(Ops.ADD, X86Ops)
+    assert isinstance(X86Ops.ADD, Ops)
+    assert isinstance(X86Ops.ADD, X86Ops)
+    # SINK is not added in X86Ops, this is now possible but behavior doesn't change
+    assert X86Ops.SINK == Ops.SINK
+    assert X86Ops.SINK is Ops.SINK
+    assert X86Ops.SINK in GroupOp.All
     assert X86Ops.SINK not in X86GroupOp.All
+    assert not isinstance(X86Ops.SINK, X86Ops)
     assert max(op.value for op in GroupOp.All) + 1 == min(op.value for op in X86GroupOp.All)
 
 if __name__ == "__main__":