diff --git a/configs/riotboard_defconfig b/configs/riotboard_defconfig
index f462844..1bf4027 100644
--- a/configs/riotboard_defconfig
+++ b/configs/riotboard_defconfig
@@ -22,6 +22,7 @@
 CONFIG_SPL=y
 CONFIG_SPL_LIBDISK_SUPPORT=y
 CONFIG_DISTRO_DEFAULTS=y
+CONFIG_SYS_MONITOR_LEN=409600
 CONFIG_BOOTCOMMAND="run finduuid; run distro_bootcmd"
 # CONFIG_CONSOLE_MUX is not set
 CONFIG_SYS_CONSOLE_IS_IN_ENV=y