diff --git a/compLib/Motor.py b/compLib/Motor.py
index 4968581..858041d 100644
--- a/compLib/Motor.py
+++ b/compLib/Motor.py
@@ -80,7 +80,12 @@ class Motor(object):
         :param percent: Percentage of max speed. between -100 and 100
         :raises: IndexError
         """
-        Motor.power_raw(port, Motor.__linearizePower(MOTOR_CURVE, percent))
+        if percent > 0:
+            Motor.power_raw(port, Motor.__linearizePower(MOTOR_CURVE, percent))
+        elif percent < 0:
+            Motor.power_raw(port, -Motor.__linearizePower(MOTOR_CURVE, -percent))
+        else:
+            Motor.power_raw(port, 0)
 
     @staticmethod
     def all_off():