diff --git a/etc/mtree/BSD.tests.dist b/etc/mtree/BSD.tests.dist
index 7ea02758ca4..1762bbfb7bd 100644
--- a/etc/mtree/BSD.tests.dist
+++ b/etc/mtree/BSD.tests.dist
@@ -949,6 +949,8 @@
         ..
         ses
         ..
+        sound
+        ..
         sys
         ..
         vfs