diff --git a/configs/sun8i_a23_evb_defconfig b/configs/sun8i_a23_evb_defconfig
index a3b1d76..1480158 100644
--- a/configs/sun8i_a23_evb_defconfig
+++ b/configs/sun8i_a23_evb_defconfig
@@ -9,6 +9,7 @@
 CONFIG_USB0_VBUS_DET="axp_vbus_detect"
 CONFIG_USB1_VBUS_PIN="PH7"
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SYS_MONITOR_LEN=786432
 CONFIG_CONS_INDEX=5
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_OHCI_HCD=y