diff --git a/msg-notices/msg-notices-service/src/main/java/cn/axzo/msg/center/notices/service/impl/MnsLimiter.java b/msg-notices/msg-notices-service/src/main/java/cn/axzo/msg/center/notices/service/impl/MnsLimiter.java
index 11904834..a231b04c 100644
--- a/msg-notices/msg-notices-service/src/main/java/cn/axzo/msg/center/notices/service/impl/MnsLimiter.java
+++ b/msg-notices/msg-notices-service/src/main/java/cn/axzo/msg/center/notices/service/impl/MnsLimiter.java
@@ -48,12 +48,11 @@ public class MnsLimiter {
         }
         long alreadySendCount = Long.parseLong(countStr);
 
-        MnsType msnType = request.getInternalObj(MnsType.class);
-        if (msnType == null) msnType = MnsType.BIZ;
+        MnsType mnsType = getMnsType(request);
 
         long limitCount;
         String error;
-        if (msnType == MnsType.BIZ) {
+        if (mnsType == MnsType.BIZ) {
             limitCount = props.getBizLimitPerDay();
             error = String.format("业务短信: 每天发送给同一个手机号的重复内容不能超过 %s 条。 请勿重试发送!!", limitCount);
         } else {