diff --git a/etc/mtree/minix.tree b/etc/mtree/minix.tree
index 268748dd4..277bd4094 100644
--- a/etc/mtree/minix.tree
+++ b/etc/mtree/minix.tree
@@ -28,6 +28,8 @@
 755 root    operator /usr/include/net/gen
 755 root    operator /usr/include/netinet
 755 root    operator /usr/include/sys
+755 root    operator /usr/include/ddekit
+755 root    operator /usr/include/ddekit/minix
 755 root    operator /usr/lib
 755 root    operator /usr/lib/advent
 755 root    operator /usr/lib/cawf