diff --git a/test/test_tensor.py b/test/test_tensor.py
index fb9bbc72cb..2ccf617aa4 100644
--- a/test/test_tensor.py
+++ b/test/test_tensor.py
@@ -152,6 +152,27 @@ class TestTinygrad(unittest.TestCase):
     for x,y in zip(test_tinygrad(), test_pytorch()):
       np.testing.assert_allclose(x, y, atol=1e-5, rtol=1e-6)
 
+  @unittest.expectedFailure
+  def test_const_backward_pass(self):
+    init = 3.5
+
+    def test_pytorch():
+      w1 = torch.tensor(init, requires_grad=True)
+      w2 = torch.tensor(init, requires_grad=True)
+      out = w1.add(w2)
+      out.backward()
+      return w1.grad, w2.grad
+
+    def test_tinygrad():
+      w1 = Tensor(init, requires_grad=True)
+      w2 = Tensor(init, requires_grad=True)
+      out = w1.add(w2)
+      out.backward()
+      return w1.grad.numpy(), w2.grad.numpy()
+
+    for x, y in zip(test_tinygrad(), test_pytorch()):
+      np.testing.assert_allclose(x, y, atol=1e-5)
+
   def test_nograd(self):
     x = Tensor(x_init, requires_grad=False)
     m = Tensor(m_init, requires_grad=False)