diff --git a/lib/client.js b/lib/client.js
index 754deeac9..28078adda 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -807,17 +807,17 @@ MatrixClient.prototype.addThreePid = function(creds, bind, callback) {
 };
 
 /**
- * @param {Object} auth_dict
- * @param {string} new_password
+ * @param {Object} authDict
+ * @param {string} newPassword
  * @param {module:client.callback} callback Optional.
  * @return {module:client.Promise} Resolves: TODO
  * @return {module:http-api.MatrixError} Rejects: with an error response.
  */
-MatrixClient.prototype.setPassword = function(auth_dict, new_password, callback) {
+MatrixClient.prototype.setPassword = function(authDict, newPassword, callback) {
     var path = "/account/password";
     var data = {
-        'auth': auth_dict,
-        'new_password': new_password,
+        'auth': authDict,
+        'new_password': newPassword,
     };
 
     return this._http.authedRequestWithPrefix(