diff --git a/src/key/helper.js b/src/key/helper.js
index 3f82f905..3e2656b3 100644
--- a/src/key/helper.js
+++ b/src/key/helper.js
@@ -64,7 +64,7 @@ export function isDataExpired(keyPacket, signature, date = new Date()) {
 
 /**
  * Create Binding signature to the key according to the {@link https://tools.ietf.org/html/rfc4880#section-5.2.1}
- * @param {module:packet.SecretSubkey|} subkey Subkey key packet
+ * @param {module:packet.SecretSubkey} subkey Subkey key packet
  * @param {module:packet.SecretKey} primaryKey Primary key packet
  * @param {Object} options
  */
diff --git a/src/key/key.js b/src/key/key.js
index 68db12e8..5d5b6b16 100644
--- a/src/key/key.js
+++ b/src/key/key.js
@@ -310,7 +310,7 @@ Key.prototype.getSigningKey = async function (keyId = null, date = new Date(), u
 Key.prototype.getEncryptionKey = async function(keyId, date = new Date(), userId = {}) {
   const primaryKey = this.keyPacket;
   if (await this.verifyPrimaryKey(date, userId) === enums.keyStatus.valid) {
-    // V4: by convention subkeys are preffered for encryption service
+    // V4: by convention subkeys are preferred for encryption service
     const subKeys = this.subKeys.slice().sort((a, b) => b.keyPacket.created - a.keyPacket.created);
     for (let i = 0; i < subKeys.length; i++) {
       if (!keyId || subKeys[i].getKeyId().equals(keyId)) {
@@ -760,7 +760,7 @@ Key.prototype.verifyAllUsers = async function(keys) {
  *                             The number of seconds after the key creation time that the key expires
  * @param {String} curve       (optional) Elliptic curve for ECC keys
  * @param {Date} date          (optional) Override the creation date of the key and the key signatures
- * @param {Boolean} subkeys    (optional) Indicates whether the subkey should sign rather than encrypt. Defaults to false
+ * @param {Boolean} sign       (optional) Indicates whether the subkey should sign rather than encrypt. Defaults to false
  * @returns {Promise<module:key.Key>}
  * @async
  */