diff --git a/mod.conf b/mod.conf
index a3cc322..bb81f7d 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,4 +1,4 @@
 name = stripped_tree
 author = 1faco
 depends = default
-optional_depends = moretrees
+optional_depends = moretrees, ethereal