diff --git a/src/Google/Client.php b/src/Google/Client.php
index 17a3c9d07..00e731bc5 100644
--- a/src/Google/Client.php
+++ b/src/Google/Client.php
@@ -697,7 +697,8 @@ public function revokeToken($token = null)
    * Verify an id_token. This method will verify the current id_token, if one
    * isn't provided.
    *
-   * @throws LogicException
+   * @throws LogicException If no token was provided and no token was set using `setAccessToken`.
+   * @throws UnexpectedValueException If the token is not a valid JWT.
    * @param string|null $idToken The token (id_token) that should be verified.
    * @return array|false Returns the token payload as an array if the verification was
    * successful, false otherwise.