diff --git a/dubbo-common/src/main/java/com/alibaba/dubbo/common/utils/DubboAppender.java b/dubbo-common/src/main/java/com/alibaba/dubbo/common/utils/DubboAppender.java
index 797e69da9e8..87ab12fda06 100644
--- a/dubbo-common/src/main/java/com/alibaba/dubbo/common/utils/DubboAppender.java
+++ b/dubbo-common/src/main/java/com/alibaba/dubbo/common/utils/DubboAppender.java
@@ -41,7 +41,7 @@ public static void clear() {
 
     public void append(LoggingEvent event) {
         super.append(event);
-        if (available == true) {
+        if (available) {
             Log temp = parseLog(event);
             logList.add(temp);
         }
@@ -56,4 +56,4 @@ private Log parseLog(LoggingEvent event) {
         return log;
     }
 
-}
\ No newline at end of file
+}