Force composer to download git repo instead of zip

I have some problem with composer.

 "require": {
        "php":                ">=5.3.2",
        "kriswallsmith/buzz": "0.7"
    },

Repo https://github.com/kriswallsmith/Buzz/tree/v0.7

Unfortunately github returns 502 for this request https://github.com/kriswallsmith/Buzz/zipball/v0.7

Request URL:https://nodeload.github.com/kriswallsmith/Buzz/zipball/v0.7
Status Code: 502 Bad Gateway

Luckily git clone still works ;)

Is it possible to tell/ask composer to user git clone instead of downloading zipball for this one dependency?