diff --git a/ohmpi.py b/ohmpi.py
index 40eafb83cf3eaf7def227bc4f97b6c3cbe33b6da..32ee536ad05f7aea405d02189852b39d5ca68eec 100644
--- a/ohmpi.py
+++ b/ohmpi.py
@@ -476,10 +476,10 @@ class OhmPi(object):
         # create a dictionary and compute averaged values from all stacks
         d = {
             "time": [datetime.now()],
-            "A": quad[1],
-            "B": quad[2],
-            "M": quad[3],
-            "N": quad[4],
+            "A": quad[0],
+            "B": quad[1],
+            "M": quad[2],
+            "N": quad[3],
             "inj time [ms]": (end_delay - start_delay) * 1000,
             "Vmn [mV]": [(sum_vmn / (3 + 2 * nb_stack - 1))],
             "I [mA]": [(injection_current / (3 + 2 * nb_stack - 1))],