diff --git a/app/services/modbus/polling_service.rb b/app/services/modbus/polling_service.rb
index 3083672..a49625e 100644
--- a/app/services/modbus/polling_service.rb
+++ b/app/services/modbus/polling_service.rb
@@ -50,7 +50,7 @@ module Modbus
           puts success_msg
           Rails.logger.info success_msg
         else
-          error_message = "[#{Time.now}] #{file} 실행 실패 (station_id: #{controller_id}, value: #{value})"
+          error_message = "[#{Time.now}] 실행 실패 (station_id: #{controller_id}, value: #{value})"
           puts error_message
           Rails.logger.error error_message
         end