diff --git a/akka-actor/src/main/scala/akka/dispatch/Future.scala b/akka-actor/src/main/scala/akka/dispatch/Future.scala
index a36c21ee57..c4a21ad8b7 100644
--- a/akka-actor/src/main/scala/akka/dispatch/Future.scala
+++ b/akka-actor/src/main/scala/akka/dispatch/Future.scala
@@ -419,7 +419,7 @@ sealed trait Future[+T] {
    *   }
    * </pre>
    */
-  final def onResult(pf: PartialFunction[Any, Unit]): this.type = onComplete { f ⇒
+  final def onResult(pf: PartialFunction[T, Unit]): this.type = onComplete { f ⇒
     val optr = f.result
     if (optr.isDefined) {
       val r = optr.get