diff --git a/script/Alignment/Gun_solenoid_alignment_dv_sim.py b/script/Alignment/Gun_solenoid_alignment_dv_sim.py
index 0cbff38..bdc36d4 100644
--- a/script/Alignment/Gun_solenoid_alignment_dv_sim.py
+++ b/script/Alignment/Gun_solenoid_alignment_dv_sim.py
@@ -56,7 +56,9 @@ r = lscan(I_set, [I_read, bpm_x, bpm_y], I1, I2, dI, 1.0, passes = 2, zigzag = T
 #caput("SIN-CVME-TIMAST-TMA:LaserDelayControl", 1)
 
 # take the result of the scan and do the plots
-plot(r.getReadable(2), xdata=r.getReadable(1), title = "Centroid")
+centroid_x = r.getReadable(1)
+centroid_y = r.getReadable(2)
+plot(centroid_y, xdata=centroid_x, title = "Centroid excursion")
 
 # save the entry in the logbook
 msg = str(r)