diff --git a/etc/mtree/BSD.debug.dist b/etc/mtree/BSD.debug.dist
--- a/etc/mtree/BSD.debug.dist
+++ b/etc/mtree/BSD.debug.dist
@@ -39,6 +39,10 @@
                 ..
                 i18n
                 ..
+                libxo
+                    encoder
+                    ..
+                ..
             ..
             libexec
                 bsdinstall