--- wifidog-1.1.5.orig/src/firewall.c	2007-11-01 21:04:20.000000000 +0100
+++ wifidog-1.1.5/src/firewall.c	2014-01-01 16:47:55.000000000 +0100
@@ -37,7 +37,7 @@
 #include <pthread.h>
 #include <sys/wait.h>
 #include <sys/types.h>
-#include <sys/unistd.h>
+#include <unistd.h>
 
 #include <string.h>