diff --git a/configs/rut_defconfig b/configs/rut_defconfig
index ba73dc3..25bb2d1 100644
--- a/configs/rut_defconfig
+++ b/configs/rut_defconfig
@@ -10,3 +10,4 @@
 CONFIG_CMD_GPIO=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_SPI_FLASH=y
+CONFIG_SYS_NS16550=y