diff --git a/configs/MPC8555CDS_legacy_defconfig b/configs/MPC8555CDS_legacy_defconfig
index 8e53ee0..da06ca43 100644
--- a/configs/MPC8555CDS_legacy_defconfig
+++ b/configs/MPC8555CDS_legacy_defconfig
@@ -2,3 +2,4 @@
 CONFIG_MPC85xx=y
 CONFIG_TARGET_MPC8555CDS=y
 CONFIG_SYS_EXTRA_OPTIONS="LEGACY"
+CONFIG_CMD_SETEXPR=y