diff --git a/misago/threads/tests/test_thread_bulkpatch_api.py b/misago/threads/tests/test_thread_bulkpatch_api.py
index ea902d36c6..171ff1810a 100644
--- a/misago/threads/tests/test_thread_bulkpatch_api.py
+++ b/misago/threads/tests/test_thread_bulkpatch_api.py
@@ -105,7 +105,7 @@ def test_too_large_input(self):
         self.assertEqual(
             response.json(),
             {
-                "ids": ["Ensure this field has no more than 40 elements."],
+                "ids": ["Ensure this field has no more than 25 elements."],
                 "ops": ["Ensure this field has no more than 10 elements."],
             },
         )