diff --git a/configs/ae350_rv64_spl_defconfig b/configs/ae350_rv64_spl_defconfig
index eba12a8..a5cc757 100644
--- a/configs/ae350_rv64_spl_defconfig
+++ b/configs/ae350_rv64_spl_defconfig
@@ -22,6 +22,7 @@
 CONFIG_SPL_BSS_START_ADDR=0x4000000
 CONFIG_SYS_PROMPT="RISC-V # "
 CONFIG_SYS_PBSIZE=1050
+CONFIG_SYS_BOOTM_LEN=0x4000000
 CONFIG_CMD_IMLS=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_SF_TEST=y