diff --git a/configs/bcm963158_ram_defconfig b/configs/bcm963158_ram_defconfig
index 3bc4ca3..424eca7 100644
--- a/configs/bcm963158_ram_defconfig
+++ b/configs/bcm963158_ram_defconfig
@@ -25,6 +25,7 @@
 CONFIG_SYS_MAXARGS=24
 CONFIG_SYS_CBSIZE=256
 CONFIG_SYS_PBSIZE=276
+CONFIG_SYS_BOOTM_LEN=0x1000000
 # CONFIG_CMD_LZMADEC is not set
 # CONFIG_CMD_UNZIP is not set
 # CONFIG_CMD_FLASH is not set