diff --git a/mpmaster/src/main/java/com/xypower/mpmaster/sms/SimUtil.java b/mpmaster/src/main/java/com/xypower/mpmaster/sms/SimUtil.java
index 531da187..af4214d9 100644
--- a/mpmaster/src/main/java/com/xypower/mpmaster/sms/SimUtil.java
+++ b/mpmaster/src/main/java/com/xypower/mpmaster/sms/SimUtil.java
@@ -625,7 +625,7 @@ public class SimUtil {
     }
 
     private static String setAutoTime(Context context, String content) {
-        String result;
+        String result = "";
         try {
             String[] parts = TextUtils.split(content.substring(SmsTypeEnum.SET_AUTO_TIME.value().length()), "(\\s|,|，)");
             if (parts != null) {