diff --git a/sql/hive/src/main/scala/org/apache/spark/sql/hive/hiveWriterContainers.scala b/sql/hive/src/main/scala/org/apache/spark/sql/hive/hiveWriterContainers.scala
index e9e08dbf8386a9449a1b108bf7a1318c6ad2a4b0..fc0dfd2d2f818f63c59f3fdad5fd72b66775063a 100644
--- a/sql/hive/src/main/scala/org/apache/spark/sql/hive/hiveWriterContainers.scala
+++ b/sql/hive/src/main/scala/org/apache/spark/sql/hive/hiveWriterContainers.scala
@@ -49,7 +49,7 @@ import org.apache.spark.util.SerializableJobConf
  * It is based on [[SparkHadoopWriter]].
  */
 private[hive] class SparkHiveWriterContainer(
-    @transient jobConf: JobConf,
+    @transient private val jobConf: JobConf,
     fileSinkConf: FileSinkDesc,
     inputSchema: Seq[Attribute],
     table: MetastoreRelation)