diff --git a/components/net/lwip-1.4.1/src/lwipopts.h b/components/net/lwip-1.4.1/src/lwipopts.h
index a23a167970..0b7e092d6c 100644
--- a/components/net/lwip-1.4.1/src/lwipopts.h
+++ b/components/net/lwip-1.4.1/src/lwipopts.h
@@ -3,7 +3,7 @@
 
 #include <rtconfig.h>
 
-#define ERRNO                       1
+#define ERRNO
 
 #define NO_SYS                      0
 #define LWIP_SOCKET                 1
diff --git a/components/net/lwip-2.0.2/src/lwipopts.h b/components/net/lwip-2.0.2/src/lwipopts.h
index b334c5ac17..d559684c02 100644
--- a/components/net/lwip-2.0.2/src/lwipopts.h
+++ b/components/net/lwip-2.0.2/src/lwipopts.h
@@ -3,8 +3,6 @@
 
 #include <rtconfig.h>
 
-#define ERRNO                       1
-
 #define LWIP_ERRNO_STDINCLUDE
 
 #define LWIP_IPV4                   1
diff --git a/components/net/lwip-2.1.2/src/lwipopts.h b/components/net/lwip-2.1.2/src/lwipopts.h
index 8c2bfbdd76..2cd7cb023a 100644
--- a/components/net/lwip-2.1.2/src/lwipopts.h
+++ b/components/net/lwip-2.1.2/src/lwipopts.h
@@ -3,8 +3,6 @@
 
 #include <rtconfig.h>
 
-#define ERRNO                       1
-
 #define LWIP_ERRNO_STDINCLUDE
 #define LWIP_SOCKET_SELECT 1
 #define LWIP_SOCKET_POLL 1