diff --git a/src/lib.rs b/src/lib.rs
index 9337d07ffc79..b01659eeb36e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -14,7 +14,6 @@ extern crate rustc_index;
 extern crate rustc_mir;
 extern crate rustc_target;
 extern crate syntax;
-extern crate syntax_expand;
 
 use std::any::Any;