diff --git a/src/main.rs b/src/main.rs
index dd98ec1..15b4fa8 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,4 +1,3 @@
-#![feature(unchecked_math)]
 use std::fs::File;
 use std::io::BufReader;
 use std::io::Read;