diff --git a/configs/puma-rk3399_defconfig b/configs/puma-rk3399_defconfig
index c2b0b39..0e77db6 100644
--- a/configs/puma-rk3399_defconfig
+++ b/configs/puma-rk3399_defconfig
@@ -5,6 +5,7 @@
 CONFIG_TEXT_BASE=0x00200000
 CONFIG_SPL_GPIO=y
 CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SIZE=0x3000
 CONFIG_ENV_OFFSET=0x3F8000
 CONFIG_DEFAULT_DEVICE_TREE="rk3399-puma-haikou"
 CONFIG_ROCKCHIP_RK3399=y