fixed line height

Before:
![image](https://f.cloud.github.com/assets/1572205/2413951/087e1f54-aae4-11e3-8bf6-94f684eac7d5.png)


Fixed: 
![image](https://f.cloud.github.com/assets/1572205/2413949/017ba47e-aae4-11e3-918d-9988d4328a7a.png)