diff --git a/DeviceCode/Targets/OS/CMSIS_RTOS/DeviceCode/lwip_1_4_1_os/arch/cc.h b/DeviceCode/Targets/OS/CMSIS_RTOS/DeviceCode/lwip_1_4_1_os/arch/cc.h
index a046ef323..46ccbbb24 100644
--- a/DeviceCode/Targets/OS/CMSIS_RTOS/DeviceCode/lwip_1_4_1_os/arch/cc.h
+++ b/DeviceCode/Targets/OS/CMSIS_RTOS/DeviceCode/lwip_1_4_1_os/arch/cc.h
@@ -40,7 +40,7 @@
 
 /* Define platform endianness (might already be defined) */
 #ifndef BYTE_ORDER
-#define BYTE_ORDER LITTLE_ENDIAN
+#define BYTE_ORDER NETMF_TARGET_LITTLE_ENDIAN
 #endif /* BYTE_ORDER */
 
 /* Define generic types used in lwIP */
diff --git a/DeviceCode/Targets/OS/Win32/lwip_1_4_1_os/arch/cc.h b/DeviceCode/Targets/OS/Win32/lwip_1_4_1_os/arch/cc.h
index dd5764a31..8ffcbeb48 100644
--- a/DeviceCode/Targets/OS/Win32/lwip_1_4_1_os/arch/cc.h
+++ b/DeviceCode/Targets/OS/Win32/lwip_1_4_1_os/arch/cc.h
@@ -48,7 +48,7 @@
 
 /* Define platform endianness (might already be defined) */
 #ifndef BYTE_ORDER
-#define BYTE_ORDER LITTLE_ENDIAN
+#define BYTE_ORDER NETMF_TARGET_LITTLE_ENDIAN
 #endif /* BYTE_ORDER */
 
 /* Define generic types used in lwIP */
diff --git a/DeviceCode/pal/OpenSSL/OpenSSL_1_0_0/tinyclr/ssl_types.h b/DeviceCode/pal/OpenSSL/OpenSSL_1_0_0/tinyclr/ssl_types.h
index b598573c4..6df7898aa 100644
--- a/DeviceCode/pal/OpenSSL/OpenSSL_1_0_0/tinyclr/ssl_types.h
+++ b/DeviceCode/pal/OpenSSL/OpenSSL_1_0_0/tinyclr/ssl_types.h
@@ -65,7 +65,7 @@ typedef int  _ssize_t;
 typedef int  ssize_t;
 #endif
 
-#if defined(LITTLE_ENDIAN)
+#if defined(NETMF_TARGET_LITTLE_ENDIAN)
 #define SSL_LONG_LITTLE_ENDIAN(x) (x)
 #define SSL_ntohl(x) SOCK_htonl(x)
 #else