Texture Geometry Scratches

Hi, I am following Blender Guru’s grenade tutorial 1/2 (link Below) and he used Influence-Geometry on a texture of scratches on the grenade to make scratches that look like they are actually cut into the grenade. The problem is when i do it the scratches seem to be coming out of the grenade instead of cutting into the object.

https://www.youtube.com/watch?v=GTslZWEIbjk#t=1837 (Around 41:00)


For bump maps, black is down and white is up. The tutorial you are watching uses an old version of blender and the bump direction was switched in one of the subsequent blender versions.
Either just use black lines on a white background or use a negative value for the normal value slider