diff --git a/ecs/dataimport/dataimport/chk.py b/ecs/dataimport/dataimport/chk.py
index 9358db30..b8df1eb0 100644
--- a/ecs/dataimport/dataimport/chk.py
+++ b/ecs/dataimport/dataimport/chk.py
@@ -85,7 +85,7 @@ def check(bucket_name, target_data_source, target_file_name, settings_key, log_i
         work_response = work_obj.get()
         work_data = io.TextIOWrapper(io.BytesIO(work_response["Body"].read()), encoding=settings_list[SETTINGS_ITEM["charCode"]], newline=LINE_FEED_CODE[settings_list[SETTINGS_ITEM["lineFeedCode"]]])
         work_header_list = []
-        for i, line in enumerate(csv.reader(work_data, quotechar=convert_quotechar(settings_list[SETTINGS_ITEM["quotechar"]]), delimiter=settings_list[SETTINGS_ITEM["delimiter"]])):
+        for line in csv.reader(work_data, quotechar=convert_quotechar(settings_list[SETTINGS_ITEM["quotechar"]]), delimiter=settings_list[SETTINGS_ITEM["delimiter"]]):
             work_header_list = line
             break