diff --git a/crates/sdk/src/wallet/derivation_path.rs b/crates/sdk/src/wallet/derivation_path.rs
index 97e52bda17..3210450d26 100644
--- a/crates/sdk/src/wallet/derivation_path.rs
+++ b/crates/sdk/src/wallet/derivation_path.rs
@@ -97,6 +97,7 @@ impl DerivationPath {
                 // all indices must be hardened
                 self.0.as_ref().iter().all(|idx| idx.is_hardened())
             }
+            // no restriction for secp256k1 scheme
             _ => true,
         }
     }