diff --git a/configs/sipeed_maix_bitm_defconfig b/configs/sipeed_maix_bitm_defconfig
index d977a9e..7316657 100644
--- a/configs/sipeed_maix_bitm_defconfig
+++ b/configs/sipeed_maix_bitm_defconfig
@@ -6,6 +6,8 @@
 CONFIG_SYS_LOAD_ADDR=0x80000000
 CONFIG_TARGET_SIPEED_MAIX=y
 CONFIG_ARCH_RV64I=y
+CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
+CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x803fffff
 CONFIG_STACK_SIZE=0x100000
 CONFIG_USE_BOOTCOMMAND=y
 CONFIG_BOOTCOMMAND="run k210_bootcmd"