diff --git a/src/librustc_mir/lib.rs b/src/librustc_mir/lib.rs
index a8fa69fb471..da29c900b8f 100644
--- a/src/librustc_mir/lib.rs
+++ b/src/librustc_mir/lib.rs
@@ -16,7 +16,6 @@ Rust MIR: a lowered representation of Rust. Also: an experiment!
 
 #![cfg_attr(not(stage0), feature(nll))]
 #![cfg_attr(not(stage0), feature(infer_outlives_requirements))]
-#![feature(infer_outlives_requirements)]
 #![feature(in_band_lifetimes)]
 #![feature(slice_patterns)]
 #![feature(slice_sort_by_cached_key)]