diff --git a/drivers/ninaw10/nina_wifi_bsp.c b/drivers/ninaw10/nina_wifi_bsp.c
index a65ef7fd86..d11e139705 100644
--- a/drivers/ninaw10/nina_wifi_bsp.c
+++ b/drivers/ninaw10/nina_wifi_bsp.c
@@ -150,4 +150,8 @@ int nina_bsp_spi_transfer(const uint8_t *tx_buf, uint8_t *rx_buf, uint32_t size)
     return 0;
 }
 
+MP_REGISTER_ROOT_POINTER(struct _machine_spi_obj_t *mp_wifi_spi);
+MP_REGISTER_ROOT_POINTER(struct _machine_timer_obj_t *mp_wifi_timer);
+MP_REGISTER_ROOT_POINTER(struct _mp_obj_list_t *mp_wifi_sockpoll_list);
+
 #endif // MICROPY_PY_NETWORK_NINAW10
diff --git a/ports/rp2/mpconfigport.h b/ports/rp2/mpconfigport.h
index 1e85104844..87bddbeb77 100644
--- a/ports/rp2/mpconfigport.h
+++ b/ports/rp2/mpconfigport.h
@@ -197,12 +197,10 @@ extern const struct _mp_obj_type_t mp_network_cyw43_type;
 #define MICROPY_PY_USOCKET_EXTENDED_STATE   (1)
 #endif
 // It also requires an additional root pointer for the SPI object.
-#define MICROPY_PORT_ROOT_POINTER_NINAW10   struct _machine_spi_obj_t *mp_wifi_spi; struct _machine_timer_obj_t *mp_wifi_timer; struct _mp_obj_list_t *mp_wifi_sockpoll_list;
 extern const struct _mod_network_nic_type_t mod_network_nic_type_nina;
 #define MICROPY_HW_NIC_NINAW10              { MP_ROM_QSTR(MP_QSTR_WLAN), MP_ROM_PTR(&mod_network_nic_type_nina) },
 #else
 #define MICROPY_HW_NIC_NINAW10
-#define MICROPY_PORT_ROOT_POINTER_NINAW10
 #endif
 
 #if MICROPY_PY_NETWORK_WIZNET5K
@@ -239,7 +237,6 @@ extern const struct _mod_network_nic_type_t mod_network_nic_type_wiznet5k;
     void *machine_i2s_obj[2]; \
     NETWORK_ROOT_POINTERS \
     MICROPY_BOARD_ROOT_POINTERS \
-    MICROPY_PORT_ROOT_POINTER_NINAW10 \
     MICROPY_PORT_ROOT_POINTER_BLUETOOTH \
         MICROPY_PORT_ROOT_POINTER_BLUETOOTH_NIMBLE \