diff --git a/bin/scripts/msdial5_formatter.py b/bin/scripts/msdial5_formatter.py
index f5f152d..e7cd3f2 100755
--- a/bin/scripts/msdial5_formatter.py
+++ b/bin/scripts/msdial5_formatter.py
@@ -25,7 +25,7 @@ def convert_to_feature_csv(input_filename, output_filename):
     output_records = []
 
     for record in input_records:
-        scan = int(record["Alignment ID"]) + 1
+        scan = int(record["Alignment ID"])
         mz = record["Average Mz"]
         rt = record["Average Rt(min)"]