diff --git a/configs/orangepi_pc_defconfig b/configs/orangepi_pc_defconfig
index 905ff7b..4d3fa77 100644
--- a/configs/orangepi_pc_defconfig
+++ b/configs/orangepi_pc_defconfig
@@ -5,6 +5,7 @@
 CONFIG_MACH_SUN8I_H3=y
 CONFIG_DRAM_CLK=624
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SYS_MONITOR_LEN=786432
 CONFIG_SPL_I2C=y
 CONFIG_SPL_SYS_I2C_LEGACY=y
 CONFIG_SYS_I2C_MVTWSI=y