diff --git a/tests/forms_tests/field_tests/test_emailfield.py b/tests/forms_tests/field_tests/test_emailfield.py
index cd33c28a14..70fa5a2f47 100644
--- a/tests/forms_tests/field_tests/test_emailfield.py
+++ b/tests/forms_tests/field_tests/test_emailfield.py
@@ -67,7 +67,7 @@ class EmailFieldTest(FormFieldAssertionsMixin, SimpleTestCase):
         email = 'a' * 245 + '@example.com'  # This email has 255 characters
         with self.assertRaisesMessage(
             ValidationError,
-            "'Ensure this value has at most 254 characters (it has 255).'"
+            "'Ensure this value has at most 15 characters (it has 255).'"
         ):
             f.clean(email)