1 files changed, 2 insertions, 1 deletions
diff --git a/util/comm-usb.c b/util/comm-usb.c
index 3810af6ea8..9b362aa2f4 100644
--- a/util/comm-usb.c
+++ b/util/comm-usb.c
@@ -125,8 +125,9 @@ static int find_interface_with_endpoint(struct usb_endpoint *uep)
 				ep = &iface->endpoint[k];
 				if (ep->bEndpointAddress == uep->ep_num) {
 					uep->chunk_len = ep->wMaxPacketSize;
+					r = iface->bInterfaceNumber;
 					libusb_free_config_descriptor(conf);
-					return i;
+					return r;
 				}
 			}
 		}