diff --git a/bookkeeper-benchmark/src/main/java/org/apache/bookkeeper/benchmark/BenchReadThroughputLatency.java b/bookkeeper-benchmark/src/main/java/org/apache/bookkeeper/benchmark/BenchReadThroughputLatency.java
index 8a404b9f3de..ed46f6d2fb8 100644
--- a/bookkeeper-benchmark/src/main/java/org/apache/bookkeeper/benchmark/BenchReadThroughputLatency.java
+++ b/bookkeeper-benchmark/src/main/java/org/apache/bookkeeper/benchmark/BenchReadThroughputLatency.java
@@ -194,7 +194,7 @@ public static void main(String[] args) throws Exception {
         }
 
         final CountDownLatch shutdownLatch = new CountDownLatch(1);
-    
+
         String genLedgerWay = cmd.getOptionValue("genLedgerWay", "flat");
         String nodepath;
         if ("flat".equals(genLedgerWay)) {