diff --git a/configs/turris_mox_defconfig b/configs/turris_mox_defconfig
index 018ec50..1df47fe 100644
--- a/configs/turris_mox_defconfig
+++ b/configs/turris_mox_defconfig
@@ -16,6 +16,8 @@
 CONFIG_AHCI=y
 CONFIG_OF_BOARD_FIXUP=y
 CONFIG_DISTRO_DEFAULTS=y
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0xff0000
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y