diff --git a/configs/io_defconfig b/configs/io_defconfig
index 17c9c9d..e83112c 100644
--- a/configs/io_defconfig
+++ b/configs/io_defconfig
@@ -6,3 +6,4 @@
 # CONFIG_CMD_ELF is not set
 # CONFIG_CMD_NFS is not set
 CONFIG_SYS_NS16550=y
+CONFIG_OF_LIBFDT=y