diff --git a/PostgreSQL/prism/prism.sql b/PostgreSQL/prism/prism.sql
index a83d1c6..f596015 100644
--- a/PostgreSQL/prism/prism.sql
+++ b/PostgreSQL/prism/prism.sql
@@ -95,7 +95,7 @@ where action_id = (select action_id from actions where action = 'block-break')
 group by activities.cause_id, causes.cause
 order by count(activities.cause_id) desc;
 
--- 1天内，非玩家触发的 block-break 行为，按 type_id 分组
+-- 1天内，非玩家触发的 block-break 行为，按 cause_entity_type_id 分组
 select activities.cause_entity_type_id, entity_types.entity_type, count(*)
 from activities
          left join entity_types on activities.cause_entity_type_id = entity_types.entity_type_id