diff --git a/ohmpy_v_1_01.py b/ohmpy_v_1_01.py
index 9748cbe6a2936e62ab2b7f112562f5e5ee7989b0..e2a51fd515a2311df4e1502792234a8b81c8122c 100644
--- a/ohmpy_v_1_01.py
+++ b/ohmpy_v_1_01.py
@@ -55,7 +55,7 @@ stack= 1 # repetition of the current injection for each quadrupole
 """
 Reading the quadripole file
 """
-N=numpy.loadtxt("ABMN4.txt", delimiter=" ",dtype=int) # load quadripole file
+N=numpy.loadtxt("ABMN.txt", delimiter=" ",dtype=int) # load quadripole file
 
 for g in range(0,nbr_meas): # for time-lapse monitoring