diff --git a/configs/stmark2_defconfig b/configs/stmark2_defconfig
index 99074c9..5ee2edc 100644
--- a/configs/stmark2_defconfig
+++ b/configs/stmark2_defconfig
@@ -10,6 +10,7 @@
 CONFIG_TARGET_STMARK2=y
 CONFIG_MCFTMR=y
 CONFIG_SYS_BARGSIZE=256
+CONFIG_SYS_MONITOR_LEN=262144
 CONFIG_TIMESTAMP=y
 CONFIG_SYS_MONITOR_BASE=0x47E00400
 CONFIG_USE_BOOTARGS=y