diff --git a/tools/sdk/lib/liblwip2.a b/tools/sdk/lib/liblwip2.a
index e57030b33e..46f6e49691 100644
Binary files a/tools/sdk/lib/liblwip2.a and b/tools/sdk/lib/liblwip2.a differ
diff --git a/tools/sdk/lib/liblwip2_1460.a b/tools/sdk/lib/liblwip2_1460.a
index f814b335ec..0928362bf6 100644
Binary files a/tools/sdk/lib/liblwip2_1460.a and b/tools/sdk/lib/liblwip2_1460.a differ
diff --git a/tools/sdk/lwip2/builder b/tools/sdk/lwip2/builder
index 0c0d8c2fb9..163bb82dd9 160000
--- a/tools/sdk/lwip2/builder
+++ b/tools/sdk/lwip2/builder
@@ -1 +1 @@
-Subproject commit 0c0d8c2fb90de1fc1a956c89984b74dcdd7bf8dc
+Subproject commit 163bb82dd97e985df76c07d1c3f7325212cbdd5e
diff --git a/tools/sdk/lwip2/include/gluedebug.h b/tools/sdk/lwip2/include/gluedebug.h
index ca746bf035..2c40c65500 100644
--- a/tools/sdk/lwip2/include/gluedebug.h
+++ b/tools/sdk/lwip2/include/gluedebug.h
@@ -32,10 +32,10 @@
 // packet capture callback from esp side
 #include <stdlib.h>
 
+#define HAS_PHY_CAPTURE 1
 #ifdef __cplusplus
 extern "C"
 #endif
-#define HAS_PHY_CAPTURE 1
 void (*phy_capture) (int netif_idx, const char* data, size_t len, int out, int success);
 
 /////////////////////////////////////////////////////////////////////////////
diff --git a/tools/sdk/lwip2/include/lwip-git-hash.h b/tools/sdk/lwip2/include/lwip-git-hash.h
index 10954e23ff..61f8ef56a2 100644
--- a/tools/sdk/lwip2/include/lwip-git-hash.h
+++ b/tools/sdk/lwip2/include/lwip-git-hash.h
@@ -1,5 +1,5 @@
 // generated by makefiles/make-lwip2-hash
 #ifndef LWIP_HASH_H
 #define LWIP_HASH_H
-#define LWIP_HASH_STR "STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-10-g0c0d8c2"
+#define LWIP_HASH_STR "STABLE-2_0_3_RELEASE/glue:arduino-2.4.1-13-g163bb82"
 #endif // LWIP_HASH_H