diff --git a/question.py b/question.py
index 4d082a1..018c465 100644
--- a/question.py
+++ b/question.py
@@ -80,7 +80,7 @@ class Questions(object):
 
 				# check for broken question types
 				if q["Type"] not in self.QUESTION_TYPES:
-					raise QuestionException("Question %d from Section %d (%s) has an invalid type '%s' (valid types are %s)" % (j, i, sec["Section"], q["Type"], ", ".join(self.VALID_TYPES)))
+					raise QuestionException("Question %d from Section %d (%s) has an invalid type '%s' (valid types are %s)" % (j, i, sec["Section"], q["Type"], ", ".join(self.QUESTION_TYPES)))
 
 				# check if file for music/image questions exist
 				if q["Type"] in ("Music", "Image"):