diff --git a/ports/raspberrypi/Makefile b/ports/raspberrypi/Makefile
index 5095c4c1f8..d7373642b3 100644
--- a/ports/raspberrypi/Makefile
+++ b/ports/raspberrypi/Makefile
@@ -65,7 +65,7 @@ INC_CYW43 := \
 	-isystem sdk/src/rp2_common/pico_cyw43_arch/include/ \
 	-isystem sdk/src/rp2_common/pico_lwip/include/ \
 
-CFLAGS_CYW43 := -DCYW43_LWIP=1 -DPICO_CYW43_ARCH_THREADSAFE_BACKGROUND=1 -DCYW43_USE_SPI -DIGNORE_GPIO25 -DIGNORE_GPIO23 -DIGNORE_GPIO24 -DCYW43_LOGIC_DEBUG=0
+CFLAGS_CYW43 := -DCYW43_LWIP=1 -DPICO_CYW43_ARCH_THREADSAFE_BACKGROUND=1 -DCYW43_USE_SPI -DIGNORE_GPIO25 -DIGNORE_GPIO23 -DIGNORE_GPIO24 -DCYW43_LOGIC_DEBUG=0 -DCYW43_NETUTILS=1
 SRC_SDK_CYW43 := \
 	src/common/pico_sync/sem.c \
 	src/rp2_common/cyw43_driver/cyw43_bus_pio_spi.c \
@@ -76,6 +76,8 @@ SRC_SDK_CYW43 := \
 
 SRC_LWIP := \
 	shared/netutils/netutils.c \
+	shared/netutils/trace.c \
+	shared/netutils/dhcpserver.c \
 	$(wildcard lib/lwip/src/core/*.c) \
 	$(wildcard lib/lwip/src/core/ipv4/*.c) \
 	lib/lwip/src/netif/ethernet.c \
diff --git a/shared/netutils/dhcpserver.c b/shared/netutils/dhcpserver.c
index 9db42b3fd9..a61501c93c 100644
--- a/shared/netutils/dhcpserver.c
+++ b/shared/netutils/dhcpserver.c
@@ -33,7 +33,7 @@
 #include "py/mperrno.h"
 #include "py/mphal.h"
 
-#if MICROPY_PY_LWIP
+#if LWIP_UDP
 
 #include "shared/netutils/dhcpserver.h"
 #include "lwip/udp.h"
diff --git a/shared/netutils/netutils.h b/shared/netutils/netutils.h
index b23a78e5b8..3bb9212800 100644
--- a/shared/netutils/netutils.h
+++ b/shared/netutils/netutils.h
@@ -33,6 +33,8 @@
 #define NETUTILS_TRACE_PAYLOAD      (0x0002)
 #define NETUTILS_TRACE_NEWLINE      (0x0004)
 
+#include "py/runtime.h"
+
 typedef enum _netutils_endian_t {
     NETUTILS_LITTLE,
     NETUTILS_BIG,