diff --git a/business/jxstore/event/event_tcp.go b/business/jxstore/event/event_tcp.go
index bc698bfee..30cef5536 100644
--- a/business/jxstore/event/event_tcp.go
+++ b/business/jxstore/event/event_tcp.go
@@ -479,7 +479,7 @@ func replaceContent(content string, printMsg *model.PrintMsg) (result string) {
 				hexPrefix, _ := jxutils.Utf8ToGbk([]byte(soundPrefix))
 				hexPrefixStr := hex.EncodeToString(hexPrefix)
 				realSound := hexPrefixStr + sound
-				allLen := fmt.Sprintf("%x", (len("fd001a0101")+len(realSound))/2)
+				allLen := fmt.Sprintf("%x", (len("001a0101")+len(realSound))/2)
 				if len(allLen) < 2 {
 					allLen = "0" + allLen
 				}