diff --git a/src/Makefile.am b/src/Makefile.am
index c552cb6..37342f7 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,3 +1,3 @@
 bin_PROGRAMS = chinadns
 
-chinadns_SOURCES = chinadns.c local_ns_parser.c
+chinadns_SOURCES = chinadns.c local_ns_parser.c local_ns_parser.h
diff --git a/src/chinadns.c b/src/chinadns.c
index 3cfb8f6..6716554 100644
--- a/src/chinadns.c
+++ b/src/chinadns.c
@@ -902,7 +902,7 @@ Forward DNS requests.\n\
                         if not specified, CHNRoute will be turned\n\
   -d                    off enable bi-directional CHNRoute filter\n\
   -y                    delay time for suspects, default: 0.3\n\
-  -b BIND_ADDR          address that listens, default: 127.0.0.1\n\
+  -b BIND_ADDR          address that listens, default: 0.0.0.0\n\
   -p BIND_PORT          port that listens, default: 53\n\
   -s DNS                DNS servers to use, default:\n\
                         114.114.114.114,208.67.222.222:443,8.8.8.8\n\
diff --git a/src/local_ns_parser.c b/src/local_ns_parser.c
index bd7136c..91937dd 100644
--- a/src/local_ns_parser.c
+++ b/src/local_ns_parser.c
@@ -1,5 +1,6 @@
 #include <errno.h>
 #include <resolv.h>
+#include <stddef.h>
 #include "local_ns_parser.h"
 
 static void local_ns_setsection(ns_msg *msg, ns_sect sect);