diff --git a/configs/CHIP_pro_defconfig b/configs/CHIP_pro_defconfig
index 5a12fbb..0e7d5e7 100644
--- a/configs/CHIP_pro_defconfig
+++ b/configs/CHIP_pro_defconfig
@@ -5,6 +5,7 @@
 CONFIG_MACH_SUN5I=y
 CONFIG_DRAM_TIMINGS_DDR3_800E_1066G_1333J=y
 CONFIG_USB0_VBUS_PIN="PB10"
+CONFIG_SYS_MONITOR_LEN=786432
 CONFIG_SPL_I2C=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_MTDPARTS=y