diff --git a/lib.rs b/lib.rs
index 155bac68..e654b32c 100644
--- a/lib.rs
+++ b/lib.rs
@@ -4,6 +4,7 @@
 #[doc(html_root_url="http://www.rust-ci.org/sfackler/rust-openssl/doc")];
 
 extern mod extra;
+extern mod sync;
 
 pub mod ssl;
 pub mod crypto;
diff --git a/ssl/mod.rs b/ssl/mod.rs
index 6381b754..d6fb8bff 100644
--- a/ssl/mod.rs
+++ b/ssl/mod.rs
@@ -1,4 +1,4 @@
-use extra::sync::one::{Once, ONCE_INIT};
+use sync::one::{Once, ONCE_INIT};
 use std::cast;
 use std::libc::{c_int, c_void, c_char};
 use std::ptr;