diff --git a/infer/lib/python/inferTraceBugs b/infer/lib/python/inferTraceBugs
index 363046d1f..30e6ff674 100755
--- a/infer/lib/python/inferTraceBugs
+++ b/infer/lib/python/inferTraceBugs
@@ -13,6 +13,7 @@ from __future__ import print_function
 from __future__ import unicode_literals
 
 import argparse
+import codecs
 import json
 import os
 import re