diff --git a/components/net/lwip-2.1/porting/include/arch/cc.h b/components/net/lwip-2.1/porting/include/arch/cc.h
index 859c6d1f..64e364fa 100644
--- a/components/net/lwip-2.1/porting/include/arch/cc.h
+++ b/components/net/lwip-2.1/porting/include/arch/cc.h
@@ -61,6 +61,7 @@
 #define LWIP_DNS_API_DEFINE_ERRORS    0
 #define LWIP_DNS_API_DEFINE_FLAGS     0
 #define LWIP_DNS_API_DECLARE_STRUCTS  0
+#define LWIP_DNS_API_DECLARE_H_ERRNO  0
 
 #ifndef __SIZEOF_POINTER__
 #define __SIZEOF_POINTER__ 4   // 32 bit system