diff --git a/lib/pleroma/config_db.ex b/lib/pleroma/config_db.ex
index 89d3050d6..e9990fa35 100644
--- a/lib/pleroma/config_db.ex
+++ b/lib/pleroma/config_db.ex
@@ -302,7 +302,7 @@ defmodule Pleroma.ConfigDB do
   end
 
   def to_elixir_types(%{"tuple" => entity}) do
-    Enum.reduce(entity, {}, &Tuple.append(&2, to_elixir_types(&1)))
+    Enum.reduce(entity, {}, &Tuple.insert_at(&2, tuple_size(&2), to_elixir_types(&1)))
   end
 
   def to_elixir_types(entity) when is_map(entity) do