diff --git a/src/test/run-pass-fulldeps/newtype_index.rs b/src/test/run-pass-fulldeps/newtype_index.rs
index e1eeb3f3aa11..08e2c35e0722 100644
--- a/src/test/run-pass-fulldeps/newtype_index.rs
+++ b/src/test/run-pass-fulldeps/newtype_index.rs
@@ -1,4 +1,4 @@
-#![feature(rustc_attrs, step_trait, rustc_private)]
+#![feature(min_const_fn, rustc_attrs, rustc_private, step_trait)]
 
 #[macro_use] extern crate rustc_data_structures;
 extern crate rustc_serialize;