diff --git a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/sal/Device.java b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/sal/Device.java
index 02b4440d..46985100 100644
--- a/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/sal/Device.java
+++ b/sec-beidou-rtcm/src/main/java/com/imdroid/sideslope/sal/Device.java
@@ -97,6 +97,7 @@ public class Device {
     public void updateB562Quality(int quality){
         if(quality == UBXUtil.FIX_RESULT) fixedNum++;
         else if(quality == UBXUtil.FLOAT_RESULT) floatNum++;
+        else;
     }
 
     public void clearStat(){