diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/context/ids/ID.java b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/context/ids/ID.java
index 91d1926cd..c17efe7fb 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/context/ids/ID.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/skywalking/apm/agent/core/context/ids/ID.java
@@ -58,9 +58,8 @@ public class ID {
     public String encode() {
         if (encoding == null) {
             encoding = long2Base64(part1) + long2Base64(part2) + long2Base64(part3);
-        } else {
-            return encoding;
         }
+        return encoding;
     }
 
     private String long2Base64(long partN) {