diff --git a/configs/jetson-tk1_defconfig b/configs/jetson-tk1_defconfig
index b391a86..d935e78 100644
--- a/configs/jetson-tk1_defconfig
+++ b/configs/jetson-tk1_defconfig
@@ -12,6 +12,7 @@
 CONFIG_SYS_PROMPT="Tegra124 (Jetson TK1) # "
 CONFIG_TEGRA124=y
 CONFIG_TARGET_JETSON_TK1=y
+CONFIG_TEGRA_ENABLE_UARTD=y
 CONFIG_TEGRA_GPU=y
 CONFIG_SYS_LOAD_ADDR=0x81000000
 CONFIG_OF_SYSTEM_SETUP=y