diff --git a/configs/munices_defconfig b/configs/munices_defconfig
index 6dd615b..eabfe1e 100644
--- a/configs/munices_defconfig
+++ b/configs/munices_defconfig
@@ -2,6 +2,7 @@
 CONFIG_MPC5xxx=y
 CONFIG_TARGET_MUNICES=y
 CONFIG_OF_BOARD_SETUP=y
+CONFIG_CMD_ASKENV=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_PING=y
 CONFIG_OF_LIBFDT=y