Fix big images

Before:
![b](https://f.cloud.github.com/assets/6079787/2001983/1d56c610-85dc-11e3-820a-6bc2f6ee4d5b.png)
After:
![a](https://f.cloud.github.com/assets/6079787/2001985/3718cfda-85dc-11e3-9871-0897660b42f5.png)