diff --git a/build/src/main/resources/agent.properties b/build/src/main/resources/agent.properties
index d25ae84e..5e65afe8 100644
--- a/build/src/main/resources/agent.properties
+++ b/build/src/main/resources/agent.properties
@@ -214,6 +214,8 @@ plugin.observability.redis.metric.url=/platform-metrics
 # plugin.observability.feignClient.tracing.enabled=true
 ## restTemplate tracing
 # plugin.observability.restTemplate.tracing.enabled=true
+## httpURLConnection tracing
+# plugin.observability.httpURLConnection.tracing.enabled=true
 
 # -------------------- service name ---------------------
 ## add service name to header by name for easemesh. default name: X-Mesh-RPC-Service