diff --git a/banner/banner-server/src/main/java/cn/axzo/nanopart/server/service/impl/MaterialServiceImpl.java b/banner/banner-server/src/main/java/cn/axzo/nanopart/server/service/impl/MaterialServiceImpl.java
index 45493b84..2cd53482 100644
--- a/banner/banner-server/src/main/java/cn/axzo/nanopart/server/service/impl/MaterialServiceImpl.java
+++ b/banner/banner-server/src/main/java/cn/axzo/nanopart/server/service/impl/MaterialServiceImpl.java
@@ -497,6 +497,7 @@ public class MaterialServiceImpl extends ServiceImpl<MaterialDao, Material> impl
         switch (material.getDisplayFrequencyType()) {
             case NO_LIMIT:
                 suffix = String.join("_", MaterialDisplayFrequencyTypeEnum.NO_LIMIT.getCode());
+                break;
             case VALIDITY_PERIOD:
                 suffix = String.join("_", "P", DateUtil.format(material.getStartTime(), datePattern), DateUtil.format(material.getEndTime(), datePattern));
                 break;