diff --git a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/boot/AgentPackagePath.java b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/boot/AgentPackagePath.java
index ac0733ef2..8d6aa7d1c 100644
--- a/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/boot/AgentPackagePath.java
+++ b/apm-sniffer/apm-agent-core/src/main/java/org/apache/skywalking/apm/agent/core/boot/AgentPackagePath.java
@@ -48,7 +48,7 @@ public class AgentPackagePath {
     private static File findPath() throws AgentPackageNotFoundException {
         String classResourcePath = AgentPackagePath.class.getName().replaceAll("\\.", "/") + ".class";
 
-        URL resource = AgentPackagePath.class.getClassLoader().getSystemClassLoader().getResource(classResourcePath);
+        URL resource = ClassLoader.getSystemClassLoader().getResource(classResourcePath);
         if (resource != null) {
             String urlString = resource.toString();