diff --git a/config/site_settings.yml b/config/site_settings.yml
index 4c17203841..24d05f7eb1 100644
--- a/config/site_settings.yml
+++ b/config/site_settings.yml
@@ -375,6 +375,7 @@ posting:
   max_topic_title_length:
     client: true
     default: 255
+    max: 255
   title_min_entropy: 10
   title_prettify: true
   title_fancy_entities: true