diff --git a/etc/mtree/BSD.debug.dist b/etc/mtree/BSD.debug.dist
index fe5bc48cd1db..9584e591eb47 100644
--- a/etc/mtree/BSD.debug.dist
+++ b/etc/mtree/BSD.debug.dist
@@ -17,6 +17,8 @@
             ..
         ..
         libexec
+            casper
+            ..
         ..
         sbin
         ..