diff --git a/trpc-core/src/main/java/com/tencent/trpc/core/common/ConfigManager.java b/trpc-core/src/main/java/com/tencent/trpc/core/common/ConfigManager.java
index cc0be7fd7e..a0008af7b1 100644
--- a/trpc-core/src/main/java/com/tencent/trpc/core/common/ConfigManager.java
+++ b/trpc-core/src/main/java/com/tencent/trpc/core/common/ConfigManager.java
@@ -281,7 +281,7 @@ protected void startInternal() throws Exception {
             // 7) register service
             serverConfig.register();
             // 8) cache startup class loader
-            cachedClassLoader = Thread.currentThread().getContextClassLoader();
+            cachedClassLoader = ConfigManager.getInstance().getClass().getClassLoader();
         }
 
         private void warmupCodec() {