diff --git a/README.md b/README.md
index eddcb2d6e70846afd01bf9cded0d61639b7fb89f..1fec63eec9a31085b86887df05ee807470c3e717 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ Sky Walking | [中文](README_ZH.md)
 * Manual instrumentation
   * As an [OpenTracing supported tracer](http://opentracing.io/documentation/pages/supported-tracers)
   * Use **@Trace** annotation for any methods you want to trace.
-  * Integrate traceId, spanId into logs for log4j, log4j2 and logback.
+  * Integrate traceId into logs for log4j, log4j2 and logback.
 * Pure Java server implementation, provide RESTful and gRPC services. Compatibility with other language agents/SDKs. 
   * [How to uplink metrics and traces to collector?]()
 * The UI released on [wu-sheng/sky-walking-ui](https://github.com/wu-sheng/sky-walking-ui)