diff --git a/src/usb/ccid/ccid.c b/src/usb/ccid/ccid.c
index 8931114..2061a20 100644
--- a/src/usb/ccid/ccid.c
+++ b/src/usb/ccid/ccid.c
@@ -135,7 +135,11 @@ int driver_init_ccid(uint8_t itf) {
     return PICOKEY_OK;
 }
 
+#ifdef ESP_PLATFORM
+void tud_vendor_rx_cb(uint8_t itf) {
+#else
 void tud_vendor_rx_cb(uint8_t itf, const uint8_t *buffer, uint16_t bufsize) {
+#endif
     uint32_t len = tud_vendor_n_available(itf);
     do {
         uint16_t tlen = 0;