diff --git a/configs/devkit3250_defconfig b/configs/devkit3250_defconfig
index 6a2bb86..6630069 100644
--- a/configs/devkit3250_defconfig
+++ b/configs/devkit3250_defconfig
@@ -18,6 +18,7 @@
 CONFIG_SYS_LOAD_ADDR=0x80008000
 CONFIG_HAS_CUSTOM_SYS_INIT_SP_ADDR=y
 CONFIG_CUSTOM_SYS_INIT_SP_ADDR=0x80000f20
+CONFIG_SYS_MONITOR_LEN=393216
 CONFIG_BOOTDELAY=1
 CONFIG_USE_BOOTARGS=y
 CONFIG_BOOTARGS="console=ttyS0,115200n8"