diff --git a/tests/test_client_exceptions.py b/tests/test_client_exceptions.py
index 3fbc7b03776..554a7c44a56 100644
--- a/tests/test_client_exceptions.py
+++ b/tests/test_client_exceptions.py
@@ -300,6 +300,10 @@ def test_str_no_description(self) -> None:
         err = client.InvalidURL(url=":wrong:url:")
         assert str(err) == ":wrong:url:"
 
+    def test_none_description(self) -> None:
+        err = client.InvalidURL(":wrong:url:")
+        assert err.description is None
+
     def test_str_with_description(self) -> None:
         err = client.InvalidURL(url=":wrong:url:", description=":description:")
         assert str(err) == ":wrong:url: - :description:"