diff --git a/busybox.config b/busybox.config
index 7e89d70..4ee729c 100644
--- a/busybox.config
+++ b/busybox.config
@@ -41,9 +41,22 @@ X CONFIG_FEATURE_IP_ROUTE
 X CONFIG_APP_UDHCPC
 
 # mount/umount
+#
 X CONFIG_MOUNT
 X CONFIG_FEATURE_MOUNT_FLAGS
 O CONFIG_FEATURE_MOUNT_FSTAB
 X CONFIG_UMOUNT
 X CONFIG_FEATURE_UMOUNT_ALL
 
+# core commands
+#
+X CONFIG_CAT
+X CONFIG_CUT
+X CONFIG_ECHO
+X CONFIG_FEATURE_FANCY_ECHO
+X CONFIG_EXPR
+X CONFIG_SEQ
+X CONFIG_CP
+X CONFIG_LS
+X CONFIG_FEATURE_LS_USERNAME
+X CONFIG_FEATURE_LS_TIMESTAMPS