diff --git a/script/ManipulatorFlyScan.py b/script/ManipulatorFlyScan.py
index da85b82f..e88679af 100644
--- a/script/ManipulatorFlyScan.py
+++ b/script/ManipulatorFlyScan.py
@@ -11,7 +11,7 @@ note that the motors have a limited speed range!
 import math
 
 MOTORS = (ManipulatorX)
-CENTER = -3.
+CENTER = -3.4
 WIDTH = 1.
 RANGE = (CENTER - WIDTH / 2., CENTER + WIDTH / 2.)
 STEP = 0.025