diff --git a/configs/crs305-1g-4s-bit_defconfig b/configs/crs305-1g-4s-bit_defconfig
index 01e784e..1b46ab4 100644
--- a/configs/crs305-1g-4s-bit_defconfig
+++ b/configs/crs305-1g-4s-bit_defconfig
@@ -25,6 +25,7 @@
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_MAXARGS=96
 CONFIG_CMD_BOOTZ=y
+CONFIG_SYS_BOOTM_LEN=0x4000000
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_MTD=y
 CONFIG_CMD_SPI=y