diff --git a/bus/u4b/quirk/usb_quirk.c b/bus/u4b/quirk/usb_quirk.c
--- a/bus/u4b/quirk/usb_quirk.c
+++ b/bus/u4b/quirk/usb_quirk.c
@@ -880,7 +880,7 @@
 			return (err);
 		}
 		/* convert quirk string into numerical */
-		for (y = 0; y != USB_DEV_QUIRKS_MAX; y++) {
+		for (y = 0; y != USB_QUIRK_MAX; y++) {
 			if (strcmp(pgq->quirkname, usb_quirkstr(y)) == 0) {
 				break;
 			}