diff --git a/drivers/atmodem/network-registration.c b/drivers/atmodem/network-registration.c
index e58c44d7..5b03a932 100644
--- a/drivers/atmodem/network-registration.c
+++ b/drivers/atmodem/network-registration.c
@@ -1003,11 +1003,11 @@ static void at_creg_set_cb(gboolean ok, GAtResult *result, gpointer user_data)
 				NULL, NULL, NULL);
 		break;
 	case OFONO_VENDOR_MBM:
-		g_at_chat_send(data->modem_port, "AT*E2REG=1", none_prefix,
+		g_at_chat_send(nd->chat, "AT*E2REG=1", none_prefix,
 					NULL, NULL, NULL);
-		g_at_chat_send(data->modem_port, "AT*EREG=2", none_prefix,
+		g_at_chat_send(nd->chat, "AT*EREG=2", none_prefix,
 					NULL, NULL, NULL);
-		g_at_chat_send(data->modem_port, "AT*EPSB=1", none_prefix,
+		g_at_chat_send(nd->chat, "AT*EPSB=1", none_prefix,
 					NULL, NULL, NULL);
 
 		g_at_chat_send(nd->chat, "AT*ERINFO=1", none_prefix,