diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 3c51355ccc94..1f143c6ba86b 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -1436,6 +1436,7 @@ void gserial_suspend(struct gserial *gser)
 	spin_lock(&port->port_lock);
 	spin_unlock(&serial_port_lock);
 	port->suspended = true;
+	port->start_delayed = true;
 	spin_unlock_irqrestore(&port->port_lock, flags);
 }
 EXPORT_SYMBOL_GPL(gserial_suspend);