diff --git a/msg-center-api/src/main/java/cn/axzo/msg/center/service/pending/response/CardSendResponse.java b/msg-center-api/src/main/java/cn/axzo/msg/center/service/pending/response/CardSendResponse.java
index 9594d683..369998ff 100644
--- a/msg-center-api/src/main/java/cn/axzo/msg/center/service/pending/response/CardSendResponse.java
+++ b/msg-center-api/src/main/java/cn/axzo/msg/center/service/pending/response/CardSendResponse.java
@@ -14,7 +14,7 @@ import java.util.List;
 public class CardSendResponse {
 
     /**
-     * 卡片信息
+     * 卡片信息. CardSendRequest#returnCards=true才返回
      */
     private List<CardInfo> cards = new ArrayList<>();