diff --git a/tests/test_primitives/test_point/test_point_arithmetic.py b/tests/test_primitives/test_point/test_point_arithmetic.py
index 722a3bf..62646ae 100644
--- a/tests/test_primitives/test_point/test_point_arithmetic.py
+++ b/tests/test_primitives/test_point/test_point_arithmetic.py
@@ -7,6 +7,7 @@ def test_mocked_openssl_point_arithmetic(mock_openssl, random_ec_point1, random_
     operations_that_construct = (
         random_ec_point1 * random_ec_curvebn1,  # __mul__
         random_ec_point1 + random_ec_point2,   # __add__
+        random_ec_point1 - random_ec_point2,   # __sub__
         ~random_ec_point1                      # __invert__
     )