How do I get rid of shiny textures that show in the dark when they shouldn't?

[Vioxtar]

Specifically these: [URL]http://picload.org/image/wgdwgrr/gm_black_v20165.jpg[/URL]

If there's a command that disables them (I'm assuming mat_... something?) it would help a ton. I tried messing with HDR settings to no avail.

Thanks!

[Shadow2hel]

mat_specular 0, that should get rid of shiny stuff. :)