diff --git a/src/modular/bernstein_yang.rs b/src/modular/bernstein_yang.rs
index a55aa7cc..0b29945e 100644
--- a/src/modular/bernstein_yang.rs
+++ b/src/modular/bernstein_yang.rs
@@ -6,6 +6,8 @@
 //!
 //! Copyright (c) 2023 Privacy Scaling Explorations Team
 
+// TODO(tarcieri): optimized implementation for 32-bit platforms (#380)
+
 #![allow(clippy::needless_range_loop)]
 
 use crate::Word;