diff --git a/util/problem_detail.py b/util/problem_detail.py
index 018382135..a326c1fc7 100644
--- a/util/problem_detail.py
+++ b/util/problem_detail.py
@@ -4,10 +4,11 @@
 """
 import json as j
 import logging
+
 from flask_babel import LazyString
 from nose.tools import set_trace
 
-from core.exceptions import BaseError
+from ..exceptions import BaseError
 
 JSON_MEDIA_TYPE = "application/api-problem+json"