Index: uspace/lib/usbvirt/src/device.c
===================================================================
--- uspace/lib/usbvirt/src/device.c	(revision 09ab0a9afc9379f1604c0fd75cac2d9287ba022c)
+++ uspace/lib/usbvirt/src/device.c	(revision 676900501376128cbb87ed9ea866e1bfbb52a5db)
@@ -58,5 +58,5 @@
 	assert(DEV != NULL);
 
-	async_answer_0(icall, EOK);
+	async_answer_5(icall, EOK, 0, 0, 0, 0, async_get_label());
 
 	while (true) {