diff --git a/README.md b/README.md
index d73eed4..9105192 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,6 @@ NOTE: there is a known bug in a version of Visual Studio 2022 after 17.1.5, that
 4. `cmake .. -G "Unix Makefiles"`
 5. Build the resulting Makefile with make, or use Visual Studio Code
 
-### Additional options:
+#### Additional options:
 - `-DLIB86CPU_BUILD_TEST=ON` build the test app
-- `-LIB86CPU_XBOX_BUILD=ON` build an xbox-customized version
+- `-DLIB86CPU_XBOX_BUILD=ON` build an xbox-customized version