diff --git a/configs/nanopi_neo_defconfig b/configs/nanopi_neo_defconfig
index c025519..6110cfd 100644
--- a/configs/nanopi_neo_defconfig
+++ b/configs/nanopi_neo_defconfig
@@ -6,6 +6,7 @@
 CONFIG_DRAM_CLK=408
 # CONFIG_VIDEO_DE2 is not set
 # CONFIG_SYS_MALLOC_CLEAR_ON_INIT is not set
+CONFIG_SYS_MONITOR_LEN=786432
 CONFIG_CONSOLE_MUX=y
 CONFIG_SUN8I_EMAC=y
 CONFIG_USB_EHCI_HCD=y