diff --git a/configs/crs305-1g-4s_defconfig b/configs/crs305-1g-4s_defconfig
index a046181..81f3d0a 100644
--- a/configs/crs305-1g-4s_defconfig
+++ b/configs/crs305-1g-4s_defconfig
@@ -4,6 +4,9 @@
 CONFIG_SYS_TEXT_BASE=0x00800000
 CONFIG_SYS_MALLOC_F_LEN=0x2000
 CONFIG_TARGET_CRS305_1G_4S=y
+CONFIG_ENV_SIZE=0x10000
+CONFIG_ENV_OFFSET=0x100000
+CONFIG_ENV_SECT_SIZE=0x40000
 CONFIG_BUILD_TARGET="u-boot.kwb"
 CONFIG_USE_PREBOOT=y
 CONFIG_SYS_CONSOLE_INFO_QUIET=y