diff --git a/README b/README
index a5653e9..4ba78cb 100644
--- a/README
+++ b/README
@@ -7,3 +7,4 @@
     3) cat boot1 boot2 > /dev/fd0
     4) gcc -o test test.c;./test /dev/fd0 1;rm ./test
 
+Dont compile on freebsd amd64