diff --git a/backend/gui/pos_sales_gui.py b/backend/gui/pos_sales_gui.py
index 02a6d6f..74e00fd 100644
--- a/backend/gui/pos_sales_gui.py
+++ b/backend/gui/pos_sales_gui.py
@@ -4,6 +4,7 @@ MSSQL SALE_MAIN 테이블에서 오늘 판매 내역을 조회하여 표시
 """
 
 import sys
+import os
 from datetime import datetime
 from PyQt5.QtWidgets import (
     QApplication, QMainWindow, QWidget, QVBoxLayout, QHBoxLayout,
@@ -13,9 +14,9 @@ from PyQt5.QtWidgets import (
 from PyQt5.QtCore import QThread, pyqtSignal, Qt, QDate
 from PyQt5.QtGui import QFont
 
-# 데이터베이스 연결
-sys.path.insert(0, '.')
-from dbsetup import DatabaseManager
+# 데이터베이스 연결 (backend/ 폴더를 Python 경로에 추가)
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), '..'))
+from db.dbsetup import DatabaseManager
 
 
 class SalesQueryThread(QThread):