diff --git a/sa-token-doc/doc/use/dao-extend.md b/sa-token-doc/doc/use/dao-extend.md
index 5028360e..7a4e1fcf 100644
--- a/sa-token-doc/doc/use/dao-extend.md
+++ b/sa-token-doc/doc/use/dao-extend.md
@@ -21,7 +21,7 @@ import org.springframework.data.redis.core.StringRedisTemplate;
 import org.springframework.data.redis.serializer.JdkSerializationRedisSerializer;
 import org.springframework.data.redis.serializer.RedisSerializer;
 import org.springframework.data.redis.serializer.StringRedisSerializer;
-// import org.springframework.stereotype.Component;
+import org.springframework.stereotype.Component;
 
 import cn.dev33.satoken.dao.SaTokenDao;
 import cn.dev33.satoken.session.SaSession;