diff --git a/atusb/fw/spi.c b/atusb/fw/spi.c
index 3172ef1..359e99d 100644
--- a/atusb/fw/spi.c
+++ b/atusb/fw/spi.c
@@ -36,7 +36,7 @@ uint8_t spi_io(uint8_t v)
 //      while (!(UCSR1A & 1 << UDRE1));
 	SPI_DATA = v;
 	SPI_WAIT_DONE();
-	return SPDR;
+	return SPI_DATA;
 }