diff --git a/leanpass/tensor.py b/leanpass/tensor.py
index 6ea1cfc..64c8c35 100644
--- a/leanpass/tensor.py
+++ b/leanpass/tensor.py
@@ -108,6 +108,8 @@ def __rmul__(self, other):
 
     def __truediv__(self, other):
         other = other if isinstance(other, Tensor) else Tensor(other)
+        if np.any(other.data == 0):
+            raise ZeroDivisionError("Tensor division by zero")
         out = self._create_child(self.data / other.data, "/", (self, other))
 
         def _backward():
diff --git a/tests/test_leanpass.py b/tests/test_leanpass.py
index 2890999..f70bef2 100644
--- a/tests/test_leanpass.py
+++ b/tests/test_leanpass.py
@@ -97,3 +97,11 @@ def test_tensor_gelu_backward():
     assert x.grad.shape == x.data.shape
     assert np.all(np.isfinite(x.grad))
     assert np.all(x.grad != 0)
+
+
+def test_truediv_raises_on_zero_divisor():
+    import pytest
+    x = Tensor([1.0, 2.0], requires_grad=True)
+    y = Tensor([1.0, 0.0], requires_grad=False)
+    with pytest.raises(ZeroDivisionError):
+        _ = x / y