diff --git a/ia/src/lib.rs b/ia/src/lib.rs
index 7810501..3a4764a 100644
--- a/ia/src/lib.rs
+++ b/ia/src/lib.rs
@@ -69,6 +69,7 @@
 //! full code & project layout.
 
 #![feature(fnbox)]
+#![feature(never_type)]
 
 pub extern crate futures;
 pub extern crate cwa;