diff --git a/core/src/test/scala/org/apache/spark/util/AkkaUtilsSuite.scala b/core/src/test/scala/org/apache/spark/util/AkkaUtilsSuite.scala
index 61601016e005eed4a4907450f3ff4a261a848b8b..0af4b6098bb0aa6dd4e1659c6c7bb70c51a56afd 100644
--- a/core/src/test/scala/org/apache/spark/util/AkkaUtilsSuite.scala
+++ b/core/src/test/scala/org/apache/spark/util/AkkaUtilsSuite.scala
@@ -340,10 +340,11 @@ class AkkaUtilsSuite extends SparkFunSuite with LocalSparkContext with ResetSyst
       new MapOutputTrackerMasterEndpoint(rpcEnv, masterTracker, conf))
 
     val slaveConf = sparkSSLConfig()
+      .set("spark.rpc.askTimeout", "5s")
+      .set("spark.rpc.lookupTimeout", "5s")
     val securityManagerBad = new SecurityManager(slaveConf)
 
     val slaveRpcEnv = RpcEnv.create("spark-slave", hostname, 0, slaveConf, securityManagerBad)
-    val slaveTracker = new MapOutputTrackerWorker(conf)
     try {
       slaveRpcEnv.setupEndpointRef("spark", rpcEnv.address, MapOutputTracker.ENDPOINT_NAME)
       fail("should receive either ActorNotFound or TimeoutException")