diff --git a/src/lib.rs b/src/lib.rs
index b9012ab..fa19402 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -31,7 +31,6 @@
 
 #![no_std]
 #![doc(html_root_url = "https://docs.rs/ryu/0.2.4")]
-#![cfg_attr(feature = "no-panic", feature(use_extern_macros))]
 #![cfg_attr(
     feature = "cargo-clippy",
     allow(