diff --git a/streaming/src/test/scala/org/apache/spark/streaming/BasicOperationsSuite.scala b/streaming/src/test/scala/org/apache/spark/streaming/BasicOperationsSuite.scala
index ee6b433d1f1fa2d05a33991cad2d7cdf0b81a7c5..5ccef7f4619747adb8abe36c95e506db933eb629 100644
--- a/streaming/src/test/scala/org/apache/spark/streaming/BasicOperationsSuite.scala
+++ b/streaming/src/test/scala/org/apache/spark/streaming/BasicOperationsSuite.scala
@@ -375,7 +375,7 @@ class BasicOperationsSuite extends TestSuiteBase {
   }
 
   test("slice") {
-    val conf2 = new SparkConf()
+    val conf2 = conf.clone()
       .setMaster("local[2]")
       .setAppName("BasicOperationsSuite")
       .set("spark.streaming.clock", "org.apache.spark.streaming.util.ManualClock")