diff --git a/Cargo.toml b/Cargo.toml
index acec1ae4..8fb41c88 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,6 +8,7 @@ crate-type = ["staticlib"]
 
 [dependencies]
 rlibc = "*"
+spin = "*"
 
 [dependencies.bitflags]
 git = "https://github.com/phil-opp/bitflags.git"
diff --git a/src/lib.rs b/src/lib.rs
index b66d85f1..9eaaaab8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -21,6 +21,7 @@ extern crate rlibc;
 extern crate multiboot2;
 #[macro_use]
 extern crate bitflags;
+extern crate spin;
 
 use core::fmt::Write;