Employee was servicing a Joy 14-15 continuous miner. EE was on top of the miner when EE slipped and fell to the ground (approx. 6-7 feet) and landed on EE's face. EE was taken to the hospital by ambulance and was kept one day at the hospital. EE was diagnosed with a concussion and released. EE will be kept off from work for at least 30 days.