diff --git a/Makefile b/Makefile
index a40dfb2..ada27ec 100644
--- a/Makefile
+++ b/Makefile
@@ -41,6 +41,7 @@ else
 endif
 
 # Automatic settings for PC port(s)
+# WINDOWS_BUILD IS NOT FOR COMPILING A WINDOWS EXECUTABLE UNDER LINUX!
 
 NON_MATCHING := 1
 GRUCODE := f3dex2e