diff --git a/build.bat b/build.bat
index d4d0588..27e45e8 100644
--- a/build.bat
+++ b/build.bat
@@ -2,7 +2,7 @@
 set script_dir_backslash=%~dp0
 set script_dir=%script_dir_backslash:~0,-1%
 
-if not exist Build mkdir Build
-pushd Build
-cl %script_dir%\asan_example.cpp -Zi -O2 -fsanitize=address -nologo -link || exit /b 1
+if not exist %script_dir%\Build mkdir %script_dir%\Build
+pushd %script_dir%\Build
+cl %script_dir%\asan_example.cpp -Zi -fsanitize=address -nologo -link || exit /b 1
 popd