diff --git a/features/fm/alarm.go b/features/fm/alarm.go
index f49964d8..db3edf8c 100644
--- a/features/fm/alarm.go
+++ b/features/fm/alarm.go
@@ -489,6 +489,7 @@ func GetAlarmFromNF(w http.ResponseWriter, r *http.Request) {
 		}
 		session := xEngine.NewSession()
 		defer session.Close()
+		var activeAlarmNum int = 0
 		for _, alarmData := range *alarmArray {
 			log.Debug("alarmData:", alarmData)
 			// todo: clear alarm ....