diff --git a/sips/pending/_posts/2013-06-10-spores.md b/sips/pending/_posts/2013-06-10-spores.md
index 60c6f3effb..ced4630e9a 100644
--- a/sips/pending/_posts/2013-06-10-spores.md
+++ b/sips/pending/_posts/2013-06-10-spores.md
@@ -172,19 +172,22 @@ We now revisit the motivating examples we described in the above section, this t
 
 ### Futures and Akka actors
 
+The safety of futures can be improved by requiring the body of a new
+future to be a nullary spore (a spore with an empty parameter
+list).
+
 Using spores, example 1 can be re-written as follows:
 
     def receive = {
       case Request(data) =>
-        val s = spore {
+        future(spore {
           val from = sender
           val d = data
           () => {
             val result = transform(d)
             from ! Response(result)
           }
-        }
-        future { s() }
+        })
     }
 
 In this case, the problematic capturing of `this` is avoided, since the result of `this.sender` is assigned to the spore's local value `from` when the spore is created. The spore conformity checking ensures that within the spore's closure, only `from` and `d` are used.