diff --git a/instrumentation/log4j/log4j-appender-2.16/library/README.md b/instrumentation/log4j/log4j-appender-2.16/library/README.md
index aaeb7b1084..5b3f6f7ba8 100644
--- a/instrumentation/log4j/log4j-appender-2.16/library/README.md
+++ b/instrumentation/log4j/log4j-appender-2.16/library/README.md
@@ -38,7 +38,7 @@ The following demonstrates how you might configure the appender in your `log4j.x
   <Appenders>
     <Console name="Console" target="SYSTEM_OUT">
       <PatternLayout
-          pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} traceId: %X{trace_id} spanId: %X{span_id} flags: %X{trace_flags} - %msg%n"/>
+          pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} trace_id: %X{trace_id} span_id: %X{span_id} trace_flags: %X{trace_flags} - %msg%n"/>
     </Console>
     <OpenTelemetry name="OpenTelemetryAppender"/>
   </Appenders>