diff --git a/configs/sbc8349_PCI_66_defconfig b/configs/sbc8349_PCI_66_defconfig
index c50a76b..4774cd9 100644
--- a/configs/sbc8349_PCI_66_defconfig
+++ b/configs/sbc8349_PCI_66_defconfig
@@ -101,6 +101,7 @@
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_MII=y
 CONFIG_CMD_PING=y
+CONFIG_ENV_OVERWRITE=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
 CONFIG_ENV_ADDR=0xFF840000
 CONFIG_ENV_ADDR_REDUND=0xFF860000