diff --git a/src/lib.rs b/src/lib.rs
index 8b47c59..413c480 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,3 @@
-#![cfg_attr(target_arch = "wasm32", feature(use_extern_macros))]
-
 extern crate backtrace;
 #[macro_use]
 extern crate cfg_if;