diff --git a/bookkeeper-server/src/test/java/org/apache/bookkeeper/proto/BookieBackpressureForV2Test.java b/bookkeeper-server/src/test/java/org/apache/bookkeeper/proto/BookieBackpressureForV2Test.java
index 775844d05e6..5dfd7d60528 100644
--- a/bookkeeper-server/src/test/java/org/apache/bookkeeper/proto/BookieBackpressureForV2Test.java
+++ b/bookkeeper-server/src/test/java/org/apache/bookkeeper/proto/BookieBackpressureForV2Test.java
@@ -31,6 +31,6 @@ public void setUp() throws Exception {
         super.setUp();
         baseClientConf.setUseV2WireProtocol(true);
         // the backpressure will bloc the read response, disable it to let it use backpressure mechanism
-        confByIndex(0).setReadWorkerThreadsThrottlingEnabled(false);
+        bsConfs.get(0).setReadWorkerThreadsThrottlingEnabled(false);
     }
 }