diff --git a/core/src/test/scala/spark/PartitioningSuite.scala b/core/src/test/scala/spark/PartitioningSuite.scala
index e5745c81b34b1f488288eed6fc1d30c3825c33a7..16f93e71a3721029645afbc9dedc4681175a921c 100644
--- a/core/src/test/scala/spark/PartitioningSuite.scala
+++ b/core/src/test/scala/spark/PartitioningSuite.scala
@@ -4,7 +4,7 @@ import org.scalatest.FunSuite
 import scala.collection.mutable.ArrayBuffer
 import SparkContext._
 import spark.util.StatCounter
-import scala.math._
+import scala.math.abs
 
 class PartitioningSuite extends FunSuite with LocalSparkContext {