diff --git a/core/src/main/scala/spark/RDD.scala b/core/src/main/scala/spark/RDD.scala
index b413ee21c924012bc82393895e7f35e4e73909a4..efe248896a16b8163abd166985d77f6850342d25 100644
--- a/core/src/main/scala/spark/RDD.scala
+++ b/core/src/main/scala/spark/RDD.scala
@@ -69,7 +69,7 @@ abstract class RDD[T: ClassManifest](@transient sc: SparkContext) extends Serial
   
   def context = sc
 
-  def manifest: ClassManifest[T] = classManifest[T]
+  def elementClassManifest: ClassManifest[T] = classManifest[T]
   
   // Get a unique ID for this RDD
   val id = sc.newRddId()