diff --git a/lib/konfig/option.rb b/lib/konfig/option.rb
index ba033e6..de6db35 100644
--- a/lib/konfig/option.rb
+++ b/lib/konfig/option.rb
@@ -95,7 +95,6 @@ def __convert(h)
 
       h.each do |k, v|
         k = k.to_s if !k.respond_to?(:to_sym) && k.respond_to?(:to_s)
-        s.new_ostruct_member(k)
 
         if v.is_a?(Hash)
           v = v["type"] == "hash" ? v["contents"] : __convert(v)