diff --git a/src/lib.rs b/src/lib.rs
index 335e0e9..358abd8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -915,7 +915,8 @@ pub struct InvalidSignature;
 /// The outer sequence encoding is *not included*, so this is the DER encoding
 /// of an OID for `algorithm` plus the `parameters` value.
 ///
-/// For example, this is the `rsaEncryption` algorithm:
+/// For example, this is the `rsaEncryption` algorithm (but prefer to use the constant
+/// [`alg_id::RSA_ENCRYPTION`] instead):
 ///
 /// ```
 /// let rsa_encryption = rustls_pki_types::AlgorithmIdentifier::from_slice(
@@ -926,7 +927,10 @@ pub struct InvalidSignature;
 ///         0x05, 0x00
 ///     ]
 /// );
+/// assert_eq!(rustls_pki_types::alg_id::RSA_ENCRYPTION, rsa_encryption);
 /// ```
+///
+/// Common values for this type are provided in the [`alg_id`] module.
 #[derive(Clone, Copy, PartialEq, Eq)]
 pub struct AlgorithmIdentifier(&'static [u8]);