diff --git a/CMakeLists.txt b/CMakeLists.txt
index 386606cc07..f34935c522 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -372,6 +372,8 @@ if (PLATFORM_DESKTOP)
   add_subdirectory(3party/libtess2)
 endif()
 
+# Only options related to warnings should be placed here.
+# Other options should be set before all add_subdirectory calls.
 add_compile_options(
   "-Wall"
 )