diff --git a/core/src/test/scala/org/apache/spark/SparkConfSuite.scala b/core/src/test/scala/org/apache/spark/SparkConfSuite.scala
index a1bbc89ad8a0b..0d06b02e74e34 100644
--- a/core/src/test/scala/org/apache/spark/SparkConfSuite.scala
+++ b/core/src/test/scala/org/apache/spark/SparkConfSuite.scala
@@ -25,7 +25,6 @@ import scala.language.postfixOps
 import scala.util.{Random, Try}
 
 import com.esotericsoftware.kryo.Kryo
-import org.scalatest.Matchers
 
 import org.apache.spark.deploy.history.config._
 import org.apache.spark.internal.config._