diff --git a/identity_jose/src/jws/algorithm.rs b/identity_jose/src/jws/algorithm.rs
index 570c18e4c..d13387684 100644
--- a/identity_jose/src/jws/algorithm.rs
+++ b/identity_jose/src/jws/algorithm.rs
@@ -72,6 +72,10 @@ impl JwsAlgorithm {
   ];
 
   /// Returns the JWS algorithm as a `str` slice.
+  /// 
+  /// Not available when feature `custom_alg` is enabled
+  /// as it is not possible to enumerate all variants when
+  /// supporting arbitrary `alg` values.
   #[cfg(not(feature = "custom_alg"))]
   pub const fn name(self) -> &'static str {
     match self {