diff --git a/lib.rs b/lib.rs
index 2ee7bea..6f08fcf 100644
--- a/lib.rs
+++ b/lib.rs
@@ -48,7 +48,7 @@
 
 #![cfg_attr(stage0, feature(slice_patterns))]
 #![cfg_attr(stage0, feature(i128_type))]
-#![feature(try_from)]
+#![cfg_attr(stage0, feature(try_from))]
 
 // See librustc_cratesio_shim/Cargo.toml for a comment explaining this.
 #[allow(unused_extern_crates)]