diff --git a/thrift/lib/py3/test/auto_migrate/enums.py b/thrift/lib/py3/test/auto_migrate/enums.py
index cf97f04ebde..4d09f3aeb2a 100644
--- a/thrift/lib/py3/test/auto_migrate/enums.py
+++ b/thrift/lib/py3/test/auto_migrate/enums.py
@@ -50,6 +50,7 @@ def test_normal_enum(self) -> None:
         self.assertNotEqual(x.type, Kind.SOCK)
         self.assertIn(x.type, Kind)
         self.assertEqual(int(x.type), 4)
+        self.assertRaises(ValueError, lambda: Kind(47))
 
     def test_normal_enum_not_int(self) -> None:
         x = File(name="/etc", type=Kind.DIR)
diff --git a/thrift/lib/python/test/enums.py b/thrift/lib/python/test/enums.py
index a467182933a..849889bf57b 100644
--- a/thrift/lib/python/test/enums.py
+++ b/thrift/lib/python/test/enums.py
@@ -109,6 +109,7 @@ def test_normal_enum(self) -> None:
         self.assertIsInstance(self.Kind.DIR, int, "Enums are Ints")
         self.assertIn(x.type, self.Kind)
         self.assertEqual(x.type.value, 4)
+        self.assertRaises(ValueError, lambda: self.Kind(47))
 
     def test_enum_value_rename(self) -> None:
         """The value name is None but we auto rename it to None_"""