diff --git a/src/hardware/rigol-ds/protocol.c b/src/hardware/rigol-ds/protocol.c
index 77af43e9..af10b452 100644
--- a/src/hardware/rigol-ds/protocol.c
+++ b/src/hardware/rigol-ds/protocol.c
@@ -595,10 +595,10 @@ SR_PRIV int rigol_ds_receive(int fd, int revents, void *cb_data)
 
 	if (devc->num_block_bytes == 0) {
 		if (devc->model->series->protocol >= PROTOCOL_V4) {
-			if (sr_scpi_send(sdi->conn, ":WAV:START %d",
+			if (rigol_ds_config_set(sdi, ":WAV:START %d",
 					devc->num_channel_bytes + 1) != SR_OK)
 				return TRUE;
-			if (sr_scpi_send(sdi->conn, ":WAV:STOP %d",
+			if (rigol_ds_config_set(sdi, ":WAV:STOP %d",
 					MIN(devc->num_channel_bytes + ACQ_BLOCK_SIZE,
 						devc->analog_frame_size)) != SR_OK)
 				return TRUE;