diff --git a/etc/mtree/BSD.debug.dist b/etc/mtree/BSD.debug.dist
index c4647ec26b1e..829fc8baa8af 100644
--- a/etc/mtree/BSD.debug.dist
+++ b/etc/mtree/BSD.debug.dist
@@ -15,6 +15,8 @@
         lib
             geom
             ..
+            casper
+            ..
         ..
         libexec
         ..