diff --git a/configs/openrd_ultimate_defconfig b/configs/openrd_ultimate_defconfig
index 95890ec..4966815 100644
--- a/configs/openrd_ultimate_defconfig
+++ b/configs/openrd_ultimate_defconfig
@@ -14,6 +14,8 @@
 CONFIG_DEFAULT_DEVICE_TREE="kirkwood-openrd-ultimate"
 CONFIG_IDENT_STRING="\nOpenRD-Ultimate"
 CONFIG_SYS_LOAD_ADDR=0x800000
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xc8012000
 # CONFIG_SYS_MALLOC_F is not set
 CONFIG_HAS_BOARD_SIZE_LIMIT=y
 CONFIG_BOARD_SIZE_LIMIT=524288