diff --git a/board/dfi/dfi-bt700/Kconfig b/board/dfi/dfi-bt700/Kconfig
index 4b6c3fc..f92f50a 100644
--- a/board/dfi/dfi-bt700/Kconfig
+++ b/board/dfi/dfi-bt700/Kconfig
@@ -25,6 +25,7 @@ config BOARD_SPECIFIC_OPTIONS # dummy
 	select SPI_FLASH_STMICRO
 	imply SPI_FLASH_SPANSION
 	imply SPI_FLASH_WINBOND
+	select SERIAL_RX_BUFFER
 
 config PCIE_ECAM_BASE
 	default 0xe0000000