diff --git a/ecosystem/typescript/sdk_v2/src/crypto/ed25519.ts b/ecosystem/typescript/sdk_v2/src/crypto/ed25519.ts
index 6846b8c71db91..087aad930d194 100644
--- a/ecosystem/typescript/sdk_v2/src/crypto/ed25519.ts
+++ b/ecosystem/typescript/sdk_v2/src/crypto/ed25519.ts
@@ -160,7 +160,13 @@ export class Ed25519PrivateKey extends PrivateKey {
     return new Ed25519PrivateKey({ hexInput: keyPair.secretKey.slice(0, Ed25519PrivateKey.LENGTH) });
   }
 
-  publicKey(): PublicKey {
+
+  /**
+   * Derive the Ed25519PublicKey for this private key.
+   * 
+   * @returns Ed25519PublicKey
+   */
+  publicKey(): Ed25519PublicKey {
     const bytes = this.signingKeyPair.publicKey;
     return new Ed25519PublicKey({ hexInput: bytes });
   }