diff --git a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcServer.java b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcServer.java
index febaedec21706..807c2ce3b19bf 100644
--- a/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcServer.java
+++ b/hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcServer.java
@@ -900,7 +900,7 @@ <T> T invokeOnNsAsync(RemoteMethod method, Class<T> clazz, IOException ioe,
       asyncTry(() -> {
         getRPCClient().invokeSingle(nsId, method, clazz);
         asyncApply(result -> {
-          if (result != null && isExpectedClass(clazz, result)) {
+          if (result != null) {
             foreach.breakNow();
             return result;
           }