diff --git a/shared-bindings/wifi/Radio.c b/shared-bindings/wifi/Radio.c
index a0cf97c092..cb5090d0f4 100644
--- a/shared-bindings/wifi/Radio.c
+++ b/shared-bindings/wifi/Radio.c
@@ -414,17 +414,17 @@ MP_DEFINE_CONST_FUN_OBJ_1(wifi_radio_get_ipv4_subnet_ap_obj, wifi_radio_get_ipv4
 MP_PROPERTY_GETTER(wifi_radio_ipv4_subnet_ap_obj,
     (mp_obj_t)&wifi_radio_get_ipv4_subnet_ap_obj);
 
-//|     def set_ipv4_address(self, ipv4: ipaddress.IPv4Address, netmask: ipaddress.IPv4Address, gateway: ipaddress.IPv4Address, ipv4_dns: Optional[ipaddress.IPv4Address]) -> None:
+//|     def set_ipv4_address(self, *, ipv4: ipaddress.IPv4Address, netmask: ipaddress.IPv4Address, gateway: ipaddress.IPv4Address, ipv4_dns: Optional[ipaddress.IPv4Address]) -> None:
 //|         """Sets the IP v4 address of the station. Must include the netmask and gateway. DNS address is optional.
 //|            Setting the address manually will stop the DHCP client."""
 //|         ...
 STATIC mp_obj_t wifi_radio_set_ipv4_address(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
     enum { ARG_ipv4, ARG_netmask, ARG_gateway, ARG_ipv4_dns };
     static const mp_arg_t allowed_args[] = {
-        { MP_QSTR_ipv4, MP_ARG_REQUIRED | MP_ARG_OBJ, },
-        { MP_QSTR_netmask, MP_ARG_REQUIRED | MP_ARG_OBJ, },
-        { MP_QSTR_gateway, MP_ARG_REQUIRED | MP_ARG_OBJ, },
-        { MP_QSTR_ipv4_dns, MP_ARG_OBJ, {.u_obj = MP_OBJ_NULL} },
+        { MP_QSTR_ipv4, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, },
+        { MP_QSTR_netmask, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, },
+        { MP_QSTR_gateway, MP_ARG_REQUIRED | MP_ARG_KW_ONLY | MP_ARG_OBJ, },
+        { MP_QSTR_ipv4_dns, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = MP_OBJ_NULL} },
     };
 
     wifi_radio_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
@@ -434,7 +434,7 @@ STATIC mp_obj_t wifi_radio_set_ipv4_address(size_t n_args, const mp_obj_t *pos_a
     common_hal_wifi_radio_set_ipv4_address(self, args[ARG_ipv4].u_obj, args[ARG_netmask].u_obj, args[ARG_gateway].u_obj, args[ARG_ipv4_dns].u_obj);
     return mp_const_none;
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_KW(wifi_radio_set_ipv4_address_obj, 4, wifi_radio_set_ipv4_address);
+STATIC MP_DEFINE_CONST_FUN_OBJ_KW(wifi_radio_set_ipv4_address_obj, 1, wifi_radio_set_ipv4_address);
 
 //|     ipv4_address: Optional[ipaddress.IPv4Address]
 //|     """IP v4 Address of the station when connected to an access point. None otherwise."""