diff --git a/src/device/usbd.c b/src/device/usbd.c
index 0f866e4cf..b033ac4c0 100644
--- a/src/device/usbd.c
+++ b/src/device/usbd.c
@@ -1474,6 +1474,7 @@ bool usbd_edpt_xfer(uint8_t rhport, uint8_t ep_addr, uint8_t* buffer, uint16_t t
 // success message. If total_bytes is too big, the FIFO will copy only what is available
 // into the USB buffer!
 bool usbd_edpt_xfer_fifo(uint8_t rhport, uint8_t ep_addr, tu_fifo_t* ff, uint16_t total_bytes, bool is_isr) {
+  #if CFG_TUD_EDPT_DEDICATED_HWFIFO
   rhport = _usbd_rhport;
 
   uint8_t const epnum = tu_edpt_number(ep_addr);
@@ -1499,6 +1500,14 @@ bool usbd_edpt_xfer_fifo(uint8_t rhport, uint8_t ep_addr, tu_fifo_t* ff, uint16_
     TU_BREAKPOINT();
     return false;
   }
+  #else
+  (void)rhport;
+  (void)ep_addr;
+  (void)ff;
+  (void)total_bytes;
+  (void)is_isr;
+  return false;
+  #endif
 }
 
 bool usbd_edpt_busy(uint8_t rhport, uint8_t ep_addr) {