diff --git a/src/lib.rs b/src/lib.rs
index 0a593955398..9e31d026cc4 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -7,6 +7,7 @@ extern crate rustc_allocator;
 extern crate rustc_codegen_ssa;
 extern crate rustc_codegen_utils;
 extern crate rustc_data_structures;
+extern crate rustc_driver;
 extern crate rustc_fs_util;
 extern crate rustc_incremental;
 extern crate rustc_mir;