diff --git a/ports/unix/proj/lib/lwipopts.h b/ports/unix/proj/lib/lwipopts.h
index 0c2d74d..b5f0751 100644
--- a/ports/unix/proj/lib/lwipopts.h
+++ b/ports/unix/proj/lib/lwipopts.h
@@ -416,6 +416,4 @@
 
 /* Misc */
 
-#define LWIP_TIMEVAL_PRIVATE 0
-
 #endif /* __LWIPOPTS_H__ */
diff --git a/ports/unix/proj/minimal/lwipopts.h b/ports/unix/proj/minimal/lwipopts.h
index 09b7135..06fe17b 100644
--- a/ports/unix/proj/minimal/lwipopts.h
+++ b/ports/unix/proj/minimal/lwipopts.h
@@ -392,6 +392,4 @@
 
 /* Misc */
 
-#define LWIP_TIMEVAL_PRIVATE 0
-
 #endif /* __LWIPOPTS_H__ */
diff --git a/ports/unix/proj/unixsim/lwipopts.h b/ports/unix/proj/unixsim/lwipopts.h
index 1a5af19..5ca51d9 100644
--- a/ports/unix/proj/unixsim/lwipopts.h
+++ b/ports/unix/proj/unixsim/lwipopts.h
@@ -32,9 +32,6 @@
 #ifndef __LWIPOPTS_H__
 #define __LWIPOPTS_H__
 
-/* <sys/time.h> is included in cc.h! */
-#define LWIP_TIMEVAL_PRIVATE 0
-
 #define LWIP_DBG_MIN_LEVEL 0
 #define LWIP_COMPAT_SOCKETS 1
 #define TAPIF_DEBUG LWIP_DBG_ON