diff --git a/m2pool-modules/m2pool-chat/src/main/resources/mapper/chat/ChatRoomMapper.xml b/m2pool-modules/m2pool-chat/src/main/resources/mapper/chat/ChatRoomMapper.xml
index f04ffa9..0a2dd4e 100644
--- a/m2pool-modules/m2pool-chat/src/main/resources/mapper/chat/ChatRoomMapper.xml
+++ b/m2pool-modules/m2pool-chat/src/main/resources/mapper/chat/ChatRoomMapper.xml
@@ -23,7 +23,7 @@
         WHERE
             user_two_email = #{userEmail}
           AND del = FALSE
-        GROUP BY
+        ORDER BY
             flag DESC,
 	last_user_send_time DESC,
 	last_customer_send_time DESC