diff --git a/src/lib.rs b/src/lib.rs
index 1d1ef525f23..0c27bcacfb8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -24,6 +24,11 @@ extern crate rustc_parse;
 extern crate rustc_session;
 extern crate rustc_span;
 
+// Necessary to pull in object code as the rest of the rustc crates are shipped only as rmeta
+// files.
+#[allow(unused_extern_crates)]
+extern crate rustc_driver;
+
 use std::cell::RefCell;
 use std::collections::HashMap;
 use std::fmt;