diff --git a/app/services/qgis/qgis_env.py b/app/services/qgis/qgis_env.py
index a84a60b..5045c7b 100644
--- a/app/services/qgis/qgis_env.py
+++ b/app/services/qgis/qgis_env.py
@@ -141,7 +141,6 @@ def _generate_bat_wrapper(qgis_root: str, python_path: str, runner_script: str)
 
     bat_content = f"""@echo off
 chcp 65001 >nul
-set "PYTHONHOME={python_dir}"
 set "PYTHONPATH={qgis_python_dir}"
 set "QGIS_PREFIX_PATH={qgis_app_dir}"
 set "QT_PLUGIN_PATH={qtplugins};{qt5_plugins}"