diff --git a/util/src/typenum.rs b/util/src/typenum.rs
index 2f1d32f..73ccfff 100644
--- a/util/src/typenum.rs
+++ b/util/src/typenum.rs
@@ -16,6 +16,7 @@ macro_rules! typenum2const {
 
 /// Trait implemented by constant integers to facilitate conversion to constant integers
 pub trait IntoConst<T> {
+    /// The constant value after conversion
     const VALUE: T;
 }