light_environment shining through doors.

[EliteMon95]

I am unsure as to how to stop the light from light_environment from leaking it's light through doors.
Is there a value I have to set first?
[IMG]http://farm8.staticflickr.com/7101/7223639372_8d223089bc_b.jpg[/IMG]
[IMG]http://farm8.staticflickr.com/7096/7223639134_4fdebfec99_b.jpg[/IMG]

EDIT: Fixed the pictures. Also, thanks for your answer, it works for me.

[Firegod522]

[QUOTE=EliteMon95;36007995]I am unsure as to how to stop the light from light_environment from leaking it's light through doors.
Is there a value I have to set first?
[IMG]http://www.flickr.com/photos/61582545@N03/7223639372/in/photostream[/IMG]
[IMG]http://www.flickr.com/photos/61582545@N03/7223639134/in/photostream[/IMG][/QUOTE]
Put a block light brush in the door way.