diff --git a/configs/mt7620_rfb_defconfig b/configs/mt7620_rfb_defconfig
index 048a83c..137d88b 100644
--- a/configs/mt7620_rfb_defconfig
+++ b/configs/mt7620_rfb_defconfig
@@ -24,6 +24,7 @@
 # CONFIG_ARCH_FIXUP_FDT_MEMORY is not set
 CONFIG_SYS_MALLOC_BOOTPARAMS=y
 CONFIG_SPL_MAX_SIZE=0x10000
+CONFIG_SPL_BSS_MAX_SIZE=0x10000
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL_NOR_SUPPORT=y
 # CONFIG_CMD_ELF is not set