diff --git a/configs/T1042RDB_PI_defconfig b/configs/T1042RDB_PI_defconfig
index 078a105..b42b16163 100644
--- a/configs/T1042RDB_PI_defconfig
+++ b/configs/T1042RDB_PI_defconfig
@@ -2,3 +2,4 @@
 CONFIG_MPC85xx=y
 CONFIG_TARGET_T104XRDB=y
 CONFIG_SYS_EXTRA_OPTIONS="PPC_T1042,T1042RDB_PI"
+CONFIG_CMD_SETEXPR=y