diff --git a/waku/src/decrypt.rs b/waku/src/decrypt.rs
index 23e9c7f..d0190cd 100644
--- a/waku/src/decrypt.rs
+++ b/waku/src/decrypt.rs
@@ -1,3 +1,5 @@
+//! Symmetric and asymmetric waku messages [decrypting](https://rfc.vac.dev/spec/36/#decrypting-messages) methods
+
 // std
 use std::ffi::{CStr, CString};
 // crates