diff --git a/configs/P2041RDB_defconfig b/configs/P2041RDB_defconfig
index f67aa80..8b7a3ce 100644
--- a/configs/P2041RDB_defconfig
+++ b/configs/P2041RDB_defconfig
@@ -6,6 +6,7 @@
 CONFIG_DEFAULT_DEVICE_TREE="p2041rdb"
 CONFIG_ENV_ADDR=0xEFF20000
 CONFIG_MPC85xx=y
+CONFIG_SYS_INIT_RAM_LOCK=y
 CONFIG_TARGET_P2041RDB=y
 CONFIG_MPC85XX_HAVE_RESET_VECTOR=y
 CONFIG_ENABLE_36BIT_PHYS=y