diff --git a/backend/lib/tasks/export_nico.rake b/backend/lib/tasks/export_nico.rake
index 9cb1f22..444a58c 100644
--- a/backend/lib/tasks/export_nico.rake
+++ b/backend/lib/tasks/export_nico.rake
@@ -14,7 +14,7 @@ namespace :nico do
     next if videos.empty?
 
     _, stderr, status = Open3.capture3(
-        { 'MYSQL_USER' => mysql_user, 'MYSQL_PASS' => mysql_pass },
+        { 'NIZIKA_NICO_MYSQL_USER' => mysql_user, 'NIZIKA_NICO_MYSQL_PASS' => mysql_pass },
         'python3', '-m', 'tracked_videos.put_bulk_upsert', *videos,
         chdir: nizika_nico_path)