diff --git a/configs/bamboo_defconfig b/configs/bamboo_defconfig
index df4adb6..6f4e01f 100644
--- a/configs/bamboo_defconfig
+++ b/configs/bamboo_defconfig
@@ -1,4 +1,5 @@
 CONFIG_PPC=y
 CONFIG_4xx=y
 CONFIG_TARGET_BAMBOO=y
+CONFIG_CMD_SETEXPR=y
 CONFIG_REGEX=y