diff --git a/build.rs b/build.rs
index 02656064..4c0da8d7 100644
--- a/build.rs
+++ b/build.rs
@@ -1,4 +1,4 @@
-#![feature(io, path)]
+#![feature(std_misc)]
 extern crate phf_codegen;
 
 use std::env;