1 files changed, 1 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
index a7705ab66..94d843db3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -24,6 +24,7 @@ extern crate itertools;
 extern crate text_unit;
 extern crate unicode_xid;
 extern crate drop_bomb;
+extern crate parking_lot;
 
 pub mod algo;
 pub mod ast;