diff --git a/usb.c b/usb.c
index c0e090c..b80573d 100644
--- a/usb.c
+++ b/usb.c
@@ -167,6 +167,12 @@ void usbcore_process_setup_pckt(const uint8_t *data, uint16_t size, uint8_t stag
             USBDRV_ARM_IN_ZLP(0);
             break;
         }
+        case UREQ_SetInterface: // SET INTERFACE
+        {
+            // TODO: set configuration
+            USBDRV_ARM_IN_ZLP(0);
+            break;
+        }
         default: { // UNKNOWN REQUEST, pass processing to user application
             USB_CallbackEvent cbevt = { 0 };
             cbevt.type = USB_CBEVT_UNKNOWN_REQ;