diff --git a/nisext/sexts.py b/nisext/sexts.py
index db6cc66c7e..da1c056418 100644
--- a/nisext/sexts.py
+++ b/nisext/sexts.py
@@ -222,7 +222,7 @@ def _package_status(pkg_name, version, version_getter, checker):
 exit /b 1
 :goodstart
 set py_exe=%line1:~2%
-call %py_exe% %pyscript% %*
+call "%py_exe%" %pyscript% %*
 """
 
 class install_scripts_bat(install_scripts):