diff --git a/src/lib.rs b/src/lib.rs
index 9e6c7bd..6ac3918 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,3 @@
-#![feature(allocator_api)]
-
 extern crate core;
 
 use core::alloc::Layout;