diff --git a/galvani/BioLogic.py b/galvani/BioLogic.py
index c656454..e566bc1 100644
--- a/galvani/BioLogic.py
+++ b/galvani/BioLogic.py
@@ -276,7 +276,7 @@ VMPdata_colID_dtype_map = {
     11: ("<I>/mA", "<f8"),
     13: ("(Q-Qo)/mA.h", "<f8"),
     16: ("Analog IN 1/V", "<f4"),
-    17: ("Analog IN 1/V", "<f4"),  # Unclear if this column is duplicated in the underlying data
+    17: ("Analog IN 2/V", "<f4"),  # Probably column 18 is Analog IN 3/V, if anyone hits this error in the future
     19: ("control/V", "<f4"),
     20: ("control/mA", "<f4"),
     23: ("dQ/mA.h", "<f8"),  # Same as 7?