Update hackaprompt/evaluator.py

hackaprompt/evaluator.py

@@ -49,7 +49,7 @@ class LevelEvaluator:
         return remove_whitespace(completion)
 
     def validate_completion(self, completion: str):
-        expected_completion = self.expected_completion
+        expected_completion = self.expected_completion()
         formatted_completion = self.format_completion(completion)
         return True if (expected_completion.lower() in formatted_completion.lower() or
                         formatted_completion.lower() in expected_completion.lower()) else False