diff --git a/script/optics/FocusYRotScan.py b/script/optics/FocusYRotScan.py
index 5119ed8b..dcb5f632 100644
--- a/script/optics/FocusYRotScan.py
+++ b/script/optics/FocusYRotScan.py
@@ -52,9 +52,9 @@ try:
                                           
         print "speed: ", SPEED
         print "scan time: ", fly_time            
-        cscan(MOTOR, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, fly_time, RELATIVE, before_read=before_readout, after_read = after_readout, check_positions = False)
+        cscan(MOTORS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, fly_time, RELATIVE, before_read=before_readout, after_read = after_readout, check_positions = False)
     else:
-        lscan(MOTOR, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, RELATIVE, before_read=before_readout, after_read = after_readout)
+        lscan(MOTORS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, RELATIVE, before_read=before_readout, after_read = after_readout)
 finally:
     if ENDSCAN:
         after_scan()