diff --git a/src/main/java/com/genersoft/iot/vmp/jt1078/service/impl/jt1078ServiceImpl.java b/src/main/java/com/genersoft/iot/vmp/jt1078/service/impl/jt1078ServiceImpl.java
index 45347a7db..8f5f51225 100644
--- a/src/main/java/com/genersoft/iot/vmp/jt1078/service/impl/jt1078ServiceImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/jt1078/service/impl/jt1078ServiceImpl.java
@@ -328,7 +328,7 @@ public class jt1078ServiceImpl implements Ijt1078Service {
         }
         String startTimeParam = DateUtil.yyyy_MM_dd_HH_mm_ssTo1078(startTime);
         String endTimeParam = DateUtil.yyyy_MM_dd_HH_mm_ssTo1078(endTime);
-        String stream = deviceId + "-" + channelId + "-" + startTimeParam + "-" + endTimeParam;
+        String stream = deviceId + "_" + channelId + "_" + startTimeParam + "_" + endTimeParam;
         MediaServer mediaServer = mediaServerService.getMediaServerForMinimumLoad(null);
         if (mediaServer == null) {
             for (GeneralCallback<StreamInfo> errorCallback : errorCallbacks) {