diff --git a/common/ip_util.cpp b/common/ip_util.cpp
index a25a86a47..4ba6a278f 100644
--- a/common/ip_util.cpp
+++ b/common/ip_util.cpp
@@ -30,6 +30,8 @@
 #include "net/dns.h"
 #include "event/task_scheduler.h"
 
+#define bzero(p, size)     (void)memset((p), 0, (size))
+
 /**
  * @param ip
  * @return