diff --git a/script/hyst_test.py b/script/hyst_test.py
index a716e30..0e370cc 100644
--- a/script/hyst_test.py
+++ b/script/hyst_test.py
@@ -1,11 +1,11 @@
 open_valve()
 set_pol_cplus(offset = None)
 set_file('Mn_hyst_plus')
-hyst_cont(field_x, -6.8, 6.8, 2.0, [639.6, 637.0])
+hyst_cont(field_x, -6.8, 6.8, 2.0, [638.6, 637.0])
 
 
 set_pol_cminus(offset = None)
 set_file('Mn_hyst_minus')
-hyst_cont(field_x, 6.8, -6.8, 2.0, [639.6, 637.0])
+hyst_cont(field_x, 6.8, -6.8, 2.0, [638.6, 637.0])
 close_valve()
 rampdown()