diff --git a/core/src/main/scala/spark/storage/BlockManagerMaster.scala b/core/src/main/scala/spark/storage/BlockManagerMaster.scala
index 1a0b477d921729ef931be930151d47ec6704682e..4ab73a6c0d029c63ae3c8fecbd5d297e65e361ba 100644
--- a/core/src/main/scala/spark/storage/BlockManagerMaster.scala
+++ b/core/src/main/scala/spark/storage/BlockManagerMaster.scala
@@ -225,7 +225,7 @@ private[spark] class BlockManagerMasterActor(val isLocal: Boolean) extends Actor
   def removeHost(host: String) {
     logInfo("Trying to remove the host: " + host + " from BlockManagerMaster.")
     logInfo("Previous hosts: " + blockManagerInfo.keySet.toSeq)
-    blockManagerIdByHost.get(host).map(removeBlockManager)
+    blockManagerIdByHost.get(host).foreach(removeBlockManager)
     logInfo("Current hosts: " + blockManagerInfo.keySet.toSeq)
     sender ! true
   }