diff --git a/port/ehci/usb_hc_ehci.c b/port/ehci/usb_hc_ehci.c
index f3be5801..72e788a4 100644
--- a/port/ehci/usb_hc_ehci.c
+++ b/port/ehci/usb_hc_ehci.c
@@ -1253,7 +1253,7 @@ int usbh_kill_urb(struct usbh_urb *urb)
         }
     } else {
 #ifdef CONFIG_USB_EHCI_ISO
-        ehci_remove_itd_urb(urb);
+        ehci_remove_itd_urb(bus, urb);
         EHCI_HCOR->usbcmd |= (EHCI_USBCMD_PSEN | EHCI_USBCMD_ASEN);
         usb_osal_leave_critical_section(flags);
         return 0;
@@ -1315,7 +1315,7 @@ void USBH_IRQHandler(uint8_t busid)
     struct usbh_bus *bus;
 
     bus = &g_usbhost_bus[busid];
-    
+
     usbsts = EHCI_HCOR->usbsts & EHCI_HCOR->usbintr;
     EHCI_HCOR->usbsts = usbsts;