--- src/parse.c-	2012-12-03 11:31:04.750239446 +0000
+++ src/parse.c	2012-12-03 11:31:16.951206804 +0000
@@ -16,6 +16,8 @@
  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
+#include <unistd.h>
+
 #include "network.h"
 
 #include <libnetfilter_conntrack/libnetfilter_conntrack.h>