diff --git a/configs/chromebit_mickey_defconfig b/configs/chromebit_mickey_defconfig
index 862b37d..dad3b36 100644
--- a/configs/chromebit_mickey_defconfig
+++ b/configs/chromebit_mickey_defconfig
@@ -36,6 +36,7 @@
 # CONFIG_SPL_CRC32 is not set
 CONFIG_SPL_SPI_LOAD=y
 CONFIG_SYS_SPI_U_BOOT_OFFS=0x20000
+CONFIG_SYS_BOOTM_LEN=0x4000000
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y