diff --git a/uefi/src/lib.rs b/uefi/src/lib.rs
index 9a425aac6..eef044920 100644
--- a/uefi/src/lib.rs
+++ b/uefi/src/lib.rs
@@ -83,7 +83,6 @@
 //! [spec]: https://uefi.org/specifications
 //! [unstable features]: https://doc.rust-lang.org/unstable-book/
 
-#![cfg_attr(feature = "unstable", feature(error_in_core))]
 #![cfg_attr(all(feature = "unstable", feature = "alloc"), feature(allocator_api))]
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
 #![no_std]