diff --git a/resource-managers/kubernetes/integration-tests/src/test/scala/org/apache/spark/deploy/k8s/integrationtest/KubernetesTestComponents.scala b/resource-managers/kubernetes/integration-tests/src/test/scala/org/apache/spark/deploy/k8s/integrationtest/KubernetesTestComponents.scala
index 48727142dd05..b2471e51116c 100644
--- a/resource-managers/kubernetes/integration-tests/src/test/scala/org/apache/spark/deploy/k8s/integrationtest/KubernetesTestComponents.scala
+++ b/resource-managers/kubernetes/integration-tests/src/test/scala/org/apache/spark/deploy/k8s/integrationtest/KubernetesTestComponents.scala
@@ -105,16 +105,13 @@ private[spark] object SparkAppLauncher extends Logging {
       sparkHomeDir: Path): Unit = {
     val sparkSubmitExecutable = sparkHomeDir.resolve(Paths.get("bin", "spark-submit"))
     logInfo(s"Launching a spark app with arguments $appArguments and conf $appConf")
-    val appArgsArray =
-      if (appArguments.appArgs.length > 0) Array(appArguments.appArgs.mkString(" "))
-      else Array[String]()
     val commandLine = (Array(sparkSubmitExecutable.toFile.getAbsolutePath,
       "--deploy-mode", "cluster",
       "--class", appArguments.mainClass,
       "--master", appConf.get("spark.master")
     ) ++ appConf.toStringArray :+
       appArguments.mainAppResource) ++
-      appArgsArray
+      appArguments.appArgs
     ProcessUtils.executeProcess(commandLine, timeoutSecs)
   }
 }