diff --git a/examples/serde-syntex-example/src/main.rs b/examples/serde-syntex-example/src/main.rs
index 1d6e2058..6d1889d1 100644
--- a/examples/serde-syntex-example/src/main.rs
+++ b/examples/serde-syntex-example/src/main.rs
@@ -1,5 +1,3 @@
-#![cfg_attr(feature = "serde_derive", feature(proc_macro))]
-
 #[cfg(feature = "serde_derive")]
 #[macro_use]
 extern crate serde_derive;