diff --git a/src/lib.rs b/src/lib.rs
index 06b9ff5..76dacf6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -6,6 +6,7 @@
 
 #![no_std]
 #![warn(missing_docs)]
+#![feature(const_fn_trait_bound)]
 
 pub mod colors;
 pub mod configurations;