Character Controller falling through Blender terrain?

Hey all. I am using a Character Controller for my FPS character because it gives me easily gives me functions that would be a pain to write out in code. I created and Empty Object then added a Character Controller to it. Finally I added a rigid body. Next I created the terrain in Blender and imported it into my project. However, when I press play my Character Controller falls right through the terrain. All answers are appreciated. Also, I have Generate Colliders checked in the Blender model options. Thanks!

Add a mesh collider to the terrain and mark it as static.