--- sane-backends-1.0.22.orig/backend/hp5590_low.c	2010-12-02 00:49:58.000000000 +0100
+++ sane-backends-1.0.22/backend/hp5590_low.c	2014-03-18 08:38:55.000000000 +0100
@@ -46,6 +46,7 @@
 
 #include <stdio.h>
 #include <string.h>
+#include <sys/types.h>
 #include <errno.h>
 #ifdef HAVE_NETINET_IN_H
 # include <netinet/in.h>