diff --git a/configs/ib62x0_defconfig b/configs/ib62x0_defconfig
index 6685c63..fd7c148 100644
--- a/configs/ib62x0_defconfig
+++ b/configs/ib62x0_defconfig
@@ -18,6 +18,7 @@
 CONFIG_CMD_EXT2=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_JFFS2=y
+CONFIG_MTDPARTS_DEFAULT="mtdparts=orion_nand:0xe0000@0x0(uboot),0x20000@0xe0000(uboot_env),-@0x100000(root)"
 CONFIG_CMD_UBI=y
 CONFIG_ISO_PARTITION=y
 CONFIG_ENV_IS_IN_NAND=y