diff --git a/script/ExitSlitScan.py b/script/ExitSlitScan.py
index c5a8e1a8..29b095b7 100644
--- a/script/ExitSlitScan.py
+++ b/script/ExitSlitScan.py
@@ -4,9 +4,9 @@ exit slit test scan
 
 POSITIONERS = (ExitSlit)
 SENSORS = (SampleCurrent, RefCurrent, AuxCurrent, MachineCurrent)
-STARTPOS = (200.0)
-ENDPOS = (0.0)
-STEPS = -10.0
+STARTPOS = (0.0)
+ENDPOS = (200.0)
+STEPS = 10.0
 LATENCY = 0.1
 DWELL = 1.0