diff --git a/script/optics/ExitSlitYScanKei.py b/script/optics/ExitSlitYScanKei.py
index 17e19b1a..22210d2e 100644
--- a/script/optics/ExitSlitYScanKei.py
+++ b/script/optics/ExitSlitYScanKei.py
@@ -25,7 +25,7 @@ caput(KEI_DIODE + "DOSETADVANCED", 0)
 time.sleep(1.0)
 #caput(KEI_DIODE + "READSCAN.SCAN", 0)
 #caput(KEI_DIODE + "NPLC", 1)
-#caput(KEI_DIODE + "NAVG", DWELL / 0.02)
+caput(KEI_DIODE + "NAVG", DWELL / 0.02)
 #caput(KEI_DIODE + "TCOUNT", 1)
 caput(KEI_DIODE + "RANGE", 6) # 200 nA
 time.sleep(1.0)