diff --git a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.h b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.h
index 2a43d8856..1bceb42f5 100644
--- a/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.h
+++ b/Ubiquitous/XiZi_AIoT/services/drivers/usb/components/port/xhci/xhci.h
@@ -818,6 +818,8 @@ struct xhci_slot {
 	unsigned int tt_id;
 	/** Transaction translator port */
 	unsigned int tt_port;
+	/** Thread ID of the thread that is created to process xhci interrupt */
+	unsigned int tid_intr;
 
 	/** Endpoints, indexed by context ID */
 	struct xhci_endpoint *endpoint[XHCI_CTX_END];