diff --git a/README.md b/README.md
index 844de24..882eee0 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@ Collection of key derivation functions (KDFs) written in pure Rust.
 |--------|-----------|---------------|---------------|--------------|
 | `hkdf` | [HKDF]    | [![crates.io](https://img.shields.io/crates/v/hkdf.svg)](https://crates.io/crates/hkdf) | [![Documentation](https://docs.rs/hkdf/badge.svg)](https://docs.rs/hkdf) | [![Build](https://github.com/RustCrypto/KDFs/workflows/hkdf/badge.svg?branch=master&event=push)](https://github.com/RustCrypto/KDFs/actions?query=workflow:hkdf+branch:master)
 
-*NOTE: for KDFs which act as password hashing functions, please see [RustCrypto/password-hashes]*
+*NOTE: for password-based KDFs (e.g. Argon2, PBKDF2, scrypt), please see [RustCrypto/password-hashes]*
 
 ## License