diff --git a/doc/devel.txt b/doc/devel.txt
index 5f182b1..7a019de 100644
--- a/doc/devel.txt
+++ b/doc/devel.txt
@@ -6,3 +6,6 @@ FreeBSD:
   before
   #include <netinet/in.h>
 
+- #include <netinet/in.h>
+  before 
+  #include <arpa/inet.h>