diff --git a/lib/extreme_startup/question_factory.rb b/lib/extreme_startup/question_factory.rb
index 43e5cc9..8e30eaa 100644
--- a/lib/extreme_startup/question_factory.rb
+++ b/lib/extreme_startup/question_factory.rb
@@ -437,7 +437,7 @@ def as_text
     end
   end
 
-  class WarmupQuestionFactory
+  class WarmupQuestionFactory < QuestionFactory
     def next_question(player)
       WarmupQuestion.new(player)
     end