diff --git a/etc/mtree/BSD.include.dist b/etc/mtree/BSD.include.dist
index 27d68001b07..45644ab45f3 100644
--- a/etc/mtree/BSD.include.dist
+++ b/etc/mtree/BSD.include.dist
@@ -12,6 +12,8 @@
         ..
     ..
     dev
+        ppbus
+        ..
         usb
         ..
     ..