diff --git a/src/constants.rs b/src/constants.rs
index 1a695ad3..52e19a88 100644
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -17,6 +17,9 @@ pub mod util;
 /// $\ell^\mathsf{Orchard}_\mathsf{base}$
 pub(crate) const L_ORCHARD_BASE: usize = 255;
 
+/// $\ell_\mathsf{value}$
+pub(crate) const L_VALUE: usize = 64;
+
 // SWU hash-to-curve personalizations
 
 /// SWU hash-to-curve personalization