diff --git a/generate/commit_hook.bat b/generate/commit_hook.bat
index 1c8e4300..598d6586 100644
--- a/generate/commit_hook.bat
+++ b/generate/commit_hook.bat
@@ -6,6 +6,7 @@ REM     This batch file is executed on every push to GitHub.
 REM --------------------------------------------------------------------------------
 
 cd %~dp0
+set
 set ASTRONOMY_ENGINE_PYTHON_PROBLEM=1
 py test.py precision || exit /b 1
 set ASTRONOMY_ENGINE_PYTHON_PROBLEM=