diff --git a/configs/PIP405_defconfig b/configs/PIP405_defconfig
index ced7d1a..046a5d8 100644
--- a/configs/PIP405_defconfig
+++ b/configs/PIP405_defconfig
@@ -2,3 +2,4 @@
 CONFIG_4xx=y
 CONFIG_TARGET_PIP405=y
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_SYS_NS16550=y