diff --git a/drivers/modem/gsm_ppp.c b/drivers/modem/gsm_ppp.c
index be4067cf004..fa91e0f77f2 100644
--- a/drivers/modem/gsm_ppp.c
+++ b/drivers/modem/gsm_ppp.c
@@ -1364,5 +1364,5 @@ static int gsm_init(const struct device *dev)
 	return 0;
 }
 
-DEVICE_DT_DEFINE(DT_INST(0, zephyr_gsm_ppp), gsm_init, NULL, &gsm, NULL,
+DEVICE_DT_DEFINE(DT_DRV_INST(0), gsm_init, NULL, &gsm, NULL,
 		 POST_KERNEL, CONFIG_MODEM_GSM_INIT_PRIORITY, NULL);