diff --git a/src/lib.rs b/src/lib.rs
index 30fe3cc..787ab1f 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,4 @@
 #![forbid(unsafe_code)]
-#![feature(option_flattening)]
 #![warn(
     //clippy::pedantic,
     clippy::nursery,