diff --git a/extmod/network_cyw43.c b/extmod/network_cyw43.c
index 2d0b228e54..5204c4ebd6 100644
--- a/extmod/network_cyw43.c
+++ b/extmod/network_cyw43.c
@@ -226,7 +226,7 @@ STATIC mp_obj_t network_cyw43_connect(size_t n_args, const mp_obj_t *pos_args, m
         { MP_QSTR_auth, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
         { MP_QSTR_security, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
         { MP_QSTR_bssid, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
-        { MP_QSTR_channel, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = -1} },
+        { MP_QSTR_channel, MP_ARG_KW_ONLY | MP_ARG_INT, {.u_int = CYW43_CHANNEL_NONE} },
     };
 
     network_cyw43_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);