diff --git a/Cargo.toml b/Cargo.toml
index 421fea5c..d84fdfd8 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,11 +16,9 @@ readme = "README.md"
 name = "bitcoin"
 path = "src/lib.rs"
 
-[dependencies.eventual]
-git = "https://github.com/carllerche/eventual"
-
 [dependencies]
 byteorder = "0.3"
+eventual = "0.1"
 num = "0.1"
 num_cpus = "0.2"
 rand = "0.3"
diff --git a/src/util/iter.rs b/src/util/iter.rs
index a7b9e83f..53ab4723 100644
--- a/src/util/iter.rs
+++ b/src/util/iter.rs
@@ -63,7 +63,7 @@ impl<I: Iterator> Pair<I> {
 }
 
 /// Returns an iterator that returns elements of the original iterator 2 at a time
-pub trait Pairable : Sized {
+pub trait Pairable : Sized + Iterator {
     /// Returns an iterator that returns elements of the original iterator 2 at a time
     fn pair(self) -> Pair<Self>;
 }