diff --git a/recipe/bld.bat b/recipe/bld.bat
index 951fbf0..2074041 100644
--- a/recipe/bld.bat
+++ b/recipe/bld.bat
@@ -24,12 +24,13 @@ for /f "delims=" %%i in (%RECIPE_DIR%\spyder-menu-v1.json) do (
 
 set
 dir %SCRIPTS%
+dir %BUILD_PREFIX%
 where python
 echo %PYTHON%
 
 rem  How to access the build environment python?
 for /F "tokens=*" %%i in (
-    'python -c "import conda_build, pathlib; print(pathlib.Path(conda_build.__file__).parent / 'gui-64.exe')"'
+    '%CONDA_PYTHON_EXE% -c "import conda_build, pathlib; print(pathlib.Path(conda_build.__file__).parent / 'gui-64.exe')"'
 ) do (
     set exe_path=%%i
 )