diff --git a/apm-collector/apm-collector-ui/collector-ui-jetty-provider/src/main/java/org/apache/skywalking/apm/collector/ui/service/ServiceNameService.java b/apm-collector/apm-collector-ui/collector-ui-jetty-provider/src/main/java/org/apache/skywalking/apm/collector/ui/service/ServiceNameService.java
index fe9aaba84..28830fa33 100644
--- a/apm-collector/apm-collector-ui/collector-ui-jetty-provider/src/main/java/org/apache/skywalking/apm/collector/ui/service/ServiceNameService.java
+++ b/apm-collector/apm-collector-ui/collector-ui-jetty-provider/src/main/java/org/apache/skywalking/apm/collector/ui/service/ServiceNameService.java
@@ -77,7 +77,7 @@ public class ServiceNameService {
 
     private long startTimeMillis() {
         int minuteMetricDataTTL = configService.minuteMetricDataTTL();
-        return System.currentTimeMillis() - minuteMetricDataTTL * 60 * 1000;
+        return System.currentTimeMillis() - minuteMetricDataTTL * 60 * 1000L;
     }
 
     public ThroughputTrend getServiceThroughputTrend(int serviceId, Step step, long startTimeBucket,