diff --git a/configs/rock64-rk3328_defconfig b/configs/rock64-rk3328_defconfig
index 2524ad9..c17bc53 100644
--- a/configs/rock64-rk3328_defconfig
+++ b/configs/rock64-rk3328_defconfig
@@ -28,6 +28,7 @@
 CONFIG_MISC_INIT_R=y
 CONFIG_SPL_MAX_SIZE=0x40000
 CONFIG_SPL_PAD_TO=0x7f8000
+CONFIG_SPL_BSS_MAX_SIZE=0x2000
 # CONFIG_SPL_RAW_IMAGE_SUPPORT is not set
 CONFIG_TPL_SYS_MALLOC_SIMPLE=y
 CONFIG_SPL_STACK_R=y