diff --git a/austin-handler/src/main/java/com/java3y/austin/service/deduplication/ContentDeduplicationService.java b/austin-handler/src/main/java/com/java3y/austin/service/deduplication/ContentDeduplicationService.java
index 69c4b06..1b41e44 100644
--- a/austin-handler/src/main/java/com/java3y/austin/service/deduplication/ContentDeduplicationService.java
+++ b/austin-handler/src/main/java/com/java3y/austin/service/deduplication/ContentDeduplicationService.java
@@ -16,7 +16,7 @@ public class ContentDeduplicationService extends AbstractDeduplicationService {
     /**
      * 内容去重 构建key
      * <p>
-     * key: md5(templateId + templateId + content)
+     * key: md5(templateId + receiver + content)
      * <p>
      * 相同的内容相同的模板短时间内发给同一个人
      *