diff --git a/src/binary/pbox6.rs b/src/binary/pbox6.rs
index 3ae70ed..1bef858 100644
--- a/src/binary/pbox6.rs
+++ b/src/binary/pbox6.rs
@@ -1,3 +1,4 @@
+#![allow(dead_code)]
 /// # pbox 6
 ///
 /// This module contains a simple 8 bit pbox.