diff --git a/main.py b/main.py
index 66ca1e3d07a48087fa15d3143c722f9e196582fc..f71d5f9ffd743be6967d60309dbf4310df8850cf 100644
--- a/main.py
+++ b/main.py
@@ -105,7 +105,7 @@ class QuizzerApp(App):
         self.reshuffle()
 
     def answer(self, answer):
-        question = self.questions[-1] if len(self.questions) > 0 else self.DEFAULT_QUESTION
+        question = self.questions[-1] if len(self.questions) > 0 else QuizzerApp.DEFAULT_QUESTION
         self.paused = True
         self.correct = answer == question[2]
         Clock.schedule_once(lambda delta: self.unpause(), PAUSE_TIME)