diff --git a/app/api/mobile/entities/message.rb b/app/api/mobile/entities/message.rb
index 912b07e62..051c92886 100644
--- a/app/api/mobile/entities/message.rb
+++ b/app/api/mobile/entities/message.rb
@@ -51,6 +51,7 @@ module Mobile
       message_expose :replies_count
       message_expose :praise_count
       message_expose :created_on
+      message_expose :locked
       message_expose :id
       message_expose :lasted_comment
       expose :message_children,using:Mobile::Entities::Message do |c,opt|