diff --git a/configs/zmx25_defconfig b/configs/zmx25_defconfig
index 3bba1ec..2513fef 100644
--- a/configs/zmx25_defconfig
+++ b/configs/zmx25_defconfig
@@ -2,7 +2,9 @@
 CONFIG_ARCH_MX25=y
 CONFIG_SYS_TEXT_BASE=0xA0000000
 CONFIG_TARGET_ZMX25=y
+CONFIG_ENV_SIZE=0x20000
 CONFIG_NR_DRAM_BANKS=1
+CONFIG_ENV_SECT_SIZE=0x20000
 CONFIG_BOOTDELAY=5
 CONFIG_USE_PREBOOT=y
 # CONFIG_DISPLAY_CPUINFO is not set
@@ -22,6 +24,7 @@
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_FAT=y
 CONFIG_ENV_IS_IN_FLASH=y
+CONFIG_ENV_ADDR=0xA0040000
 # CONFIG_MMC is not set
 CONFIG_MTD_NOR_FLASH=y
 CONFIG_FLASH_CFI_DRIVER=y