diff --git a/configs/P1021RDB-PC_36BIT_NAND_defconfig b/configs/P1021RDB-PC_36BIT_NAND_defconfig
index 2ef7735..b48ca94 100644
--- a/configs/P1021RDB-PC_36BIT_NAND_defconfig
+++ b/configs/P1021RDB-PC_36BIT_NAND_defconfig
@@ -4,3 +4,4 @@
 CONFIG_SPL=y
 CONFIG_TPL=y
 CONFIG_SYS_EXTRA_OPTIONS="P1021RDB,36BIT,NAND"
+CONFIG_CMD_SETEXPR=y