diff --git a/src/librustc_mir/lib.rs b/src/librustc_mir/lib.rs
index 4f1b90e34cf..284dd74ce99 100644
--- a/src/librustc_mir/lib.rs
+++ b/src/librustc_mir/lib.rs
@@ -1,6 +1,6 @@
 /*!
 
-Rust MIR: a lowered representation of Rust. Also: an experiment!
+Rust MIR: a lowered representation of Rust.
 
 */