diff --git a/src/librustdoc/lib.rs b/src/librustdoc/lib.rs
index 60b713f2995e..1819c7eb7d15 100644
--- a/src/librustdoc/lib.rs
+++ b/src/librustdoc/lib.rs
@@ -23,7 +23,6 @@
 #![feature(test)]
 #![feature(vec_remove_item)]
 #![feature(entry_and_modify)]
-#![feature(dyn_trait)]
 
 extern crate arena;
 extern crate getopts;