diff --git a/src/Credentials/UserRefreshCredentials.php b/src/Credentials/UserRefreshCredentials.php
index c81ff9478..4e0b1bbbe 100644
--- a/src/Credentials/UserRefreshCredentials.php
+++ b/src/Credentials/UserRefreshCredentials.php
@@ -43,7 +43,7 @@ class UserRefreshCredentials extends CredentialsLoader
    * @param array $jsonKey JSON credentials.
    *
    * @param string $jsonKeyPath the path to a file containing JSON credentials.  If
-   *   jsonKeyStream is set, it is ignored.
+   *   jsonKey is set, it is ignored.
    */
   public function __construct(
     $scope,
diff --git a/src/OAuth2.php b/src/OAuth2.php
index 47cda0d0a..57dde8a3b 100644
--- a/src/OAuth2.php
+++ b/src/OAuth2.php
@@ -713,7 +713,7 @@ public function getGrantType()
 
     // Returns the inferred grant type, based on the current object instance
     // state.
-    if (!is_null($this->code) && !is_null($this->redirectUri)) {
+    if (!is_null($this->code)) {
       return 'authorization_code';
     } else if (!is_null($this->refreshToken)) {
       return 'refresh_token';