diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/sampling/SamplingService.java b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/sampling/SamplingService.java
index 99c06f9b1..761d192be 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/sampling/SamplingService.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/sampling/SamplingService.java
@@ -41,7 +41,7 @@ public class SamplingService implements BootService {
             if (rollingSeed % Config.Agent.SAMPLING_CYCLE != 0) {
                 segment.setSampled(false);
                 rollingSeed++;
-            }else{
+            } else {
                 this.rollingSeed = 1;
             }
         }