diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index f5bb7d2560..cc61e28d33 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -39,8 +39,6 @@
 #else
 #define DPRINTF(...) do {} while (0)
 #endif
-#define FIXME(_msg) do { fprintf(stderr, "FIXME %s:%d %s\n", \
-                                 __func__, __LINE__, _msg); abort(); } while (0)
 
 #define TRB_LINK_LIMIT  32
 #define COMMAND_LIMIT   256
@@ -1673,9 +1671,7 @@ static int xhci_try_complete_packet(XHCITransfer *xfer)
         xhci_stall_ep(xfer);
         break;
     default:
-        DPRINTF("%s: FIXME: status = %d\n", __func__,
-                xfer->packet.status);
-        FIXME("unhandled USB_RET_*");
+        g_assert_not_reached();
     }
     return 0;
 }