diff --git a/drivers/staging/greybus/es1.c b/drivers/staging/greybus/es1.c
index 2aa271751ac1..ddc26dec3150 100644
--- a/drivers/staging/greybus/es1.c
+++ b/drivers/staging/greybus/es1.c
@@ -216,6 +216,7 @@ static int message_send(struct greybus_host_device *hd, u16 cport_id,
 			  usb_sndbulkpipe(udev, es1->cport_out_endpoint),
 			  message->buffer, buffer_size,
 			  cport_out_callback, message);
+	urb->transfer_flags |= URB_ZERO_PACKET;
 	gb_connection_push_timestamp(message->operation->connection);
 	retval = usb_submit_urb(urb, gfp_mask);
 	if (retval) {
diff --git a/drivers/staging/greybus/es2.c b/drivers/staging/greybus/es2.c
index 008685b2b15b..295cc6839551 100644
--- a/drivers/staging/greybus/es2.c
+++ b/drivers/staging/greybus/es2.c
@@ -312,6 +312,7 @@ static int message_send(struct greybus_host_device *hd, u16 cport_id,
 					  es1->cport_out[bulk_ep_set].endpoint),
 			  message->buffer, buffer_size,
 			  cport_out_callback, message);
+	urb->transfer_flags |= URB_ZERO_PACKET;
 	gb_connection_push_timestamp(message->operation->connection);
 	retval = usb_submit_urb(urb, gfp_mask);
 	if (retval) {