diff --git a/core/src/main/scala/org/apache/spark/executor/Executor.scala b/core/src/main/scala/org/apache/spark/executor/Executor.scala
index a7b2328a0267605892a9e444b08d1c05967be371..7f31d7e6f8aecc2d790fae650bb157f623e2485d 100644
--- a/core/src/main/scala/org/apache/spark/executor/Executor.scala
+++ b/core/src/main/scala/org/apache/spark/executor/Executor.scala
@@ -57,7 +57,7 @@ private[spark] class Executor(
   Utils.setCustomHostname(slaveHostname)
 
   // Set spark.* properties from executor arg
-  val conf = new SparkConf(false)
+  val conf = new SparkConf(true)
   conf.setAll(properties)
 
   // If we are in yarn mode, systems can have different disk layouts so we must set it