diff --git a/src/usb/usb_descriptors.c b/src/usb/usb_descriptors.c
index 232cc8f..7e93d13 100644
--- a/src/usb/usb_descriptors.c
+++ b/src/usb/usb_descriptors.c
@@ -105,12 +105,12 @@ uint8_t const desc_hid_report_kb[] = {
 #ifdef USB_ITF_CCID
 #define TUD_SMARTCARD_DESCRIPTOR_WEB(_itf, _strix, _epout, _epin, _epsize) \
     9, TUSB_DESC_INTERFACE, _itf, 0, 2, 0xFF, 0, 0, _strix, \
-    54, 0x21, U16_TO_U8S_LE(0x0110), 0, 0x1, U32_TO_U8S_LE(0x01|0x2), U32_TO_U8S_LE(0xDFC), U32_TO_U8S_LE(0xDFC), 0, U32_TO_U8S_LE(0x2580), U32_TO_U8S_LE(0x2580), 0, U32_TO_U8S_LE(0xFE), U32_TO_U8S_LE(0), U32_TO_U8S_LE(0), U32_TO_U8S_LE(0x40840), U32_TO_U8S_LE(65544+10), 0xFF, 0xFF, U16_TO_U8S_LE(0x0), 0, 0x1, \
+    54, 0x21, U16_TO_U8S_LE(0x0110), 0, 0x1, U32_TO_U8S_LE(0x01|0x2), U32_TO_U8S_LE(0xDFC), U32_TO_U8S_LE(0xDFC), 0, U32_TO_U8S_LE(0x2580), U32_TO_U8S_LE(0x2580), 0, U32_TO_U8S_LE(0xFE), U32_TO_U8S_LE(0), U32_TO_U8S_LE(0), U32_TO_U8S_LE(0x40840), U32_TO_U8S_LE(USB_BUFFER_SIZE), 0xFF, 0xFF, U16_TO_U8S_LE(0x0), 0, 0x1, \
     7, TUSB_DESC_ENDPOINT, _epout, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0, \
     7, TUSB_DESC_ENDPOINT, _epin,  TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0
 #define TUD_SMARTCARD_DESCRIPTOR_2EP(_itf, _strix, _epout, _epin, _epsize) \
     9, TUSB_DESC_INTERFACE, _itf, 0, TUSB_SMARTCARD_CCID_EPS, TUSB_CLASS_SMART_CARD, 0, 0, _strix, \
-    54, 0x21, U16_TO_U8S_LE(0x0110), 0, 0x1, U32_TO_U8S_LE(0x01|0x2), U32_TO_U8S_LE(0xDFC), U32_TO_U8S_LE(0xDFC), 0, U32_TO_U8S_LE(0x2580), U32_TO_U8S_LE(0x2580), 0, U32_TO_U8S_LE(0xFE), U32_TO_U8S_LE(0), U32_TO_U8S_LE(0), U32_TO_U8S_LE(0x40840), U32_TO_U8S_LE(65544+10), 0xFF, 0xFF, U16_TO_U8S_LE(0x0), 0, 0x1, \
+    54, 0x21, U16_TO_U8S_LE(0x0110), 0, 0x1, U32_TO_U8S_LE(0x01|0x2), U32_TO_U8S_LE(0xDFC), U32_TO_U8S_LE(0xDFC), 0, U32_TO_U8S_LE(0x2580), U32_TO_U8S_LE(0x2580), 0, U32_TO_U8S_LE(0xFE), U32_TO_U8S_LE(0), U32_TO_U8S_LE(0), U32_TO_U8S_LE(0x40840), U32_TO_U8S_LE(USB_BUFFER_SIZE), 0xFF, 0xFF, U16_TO_U8S_LE(0x0), 0, 0x1, \
     7, TUSB_DESC_ENDPOINT, _epout, TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0, \
     7, TUSB_DESC_ENDPOINT, _epin,  TUSB_XFER_BULK, U16_TO_U8S_LE(_epsize), 0
 #if TUSB_SMARTCARD_CCID_EPS == 3