diff --git a/ecs/jskult-batch-daily/src/batch/ultmarc/export_vjsk_csv_process.py b/ecs/jskult-batch-daily/src/batch/ultmarc/export_vjsk_csv_process.py
index 27243e4a..a1b2ff23 100644
--- a/ecs/jskult-batch-daily/src/batch/ultmarc/export_vjsk_csv_process.py
+++ b/ecs/jskult-batch-daily/src/batch/ultmarc/export_vjsk_csv_process.py
@@ -243,12 +243,12 @@ def make_csv_data(record_inst_csv: list, record_pharm_cs: list):
 
         # Shift-JIS、CRLF、価囲いありで書き込む
         with open(csv_file_path, mode='w', encoding='cp932') as csv_file:
+            # ヘッダ行書き込み
+            csv_file.write(f"{','.join(head_str)}\n")
             writer = csv.writer(csv_file, delimiter=',', lineterminator='\n',
                                 quotechar='"', doublequote=True, quoting=csv.QUOTE_ALL,
                                 strict=True
                                 )
-            # ヘッダ行書き込み
-            writer.writerow(head_str)
 
             # データ部分書き込み(施設)
             for record_inst_data in record_inst_csv: