diff --git a/src/lib.rs b/src/lib.rs
index 9f9ace9c..037f2910 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,7 +2,6 @@
 #![cfg_attr(test, no_main)]
 #![feature(custom_test_frameworks)]
 #![feature(abi_x86_interrupt)]
-#![feature(const_mut_refs)]
 #![test_runner(crate::test_runner)]
 #![reexport_test_harness_main = "test_main"]