diff --git a/flake8/reporter.py b/flake8/reporter.py
index eba7f1f..5cf17e4 100644
--- a/flake8/reporter.py
+++ b/flake8/reporter.py
@@ -2,6 +2,7 @@
 # Adapted from a contribution of Johan Dahlin
 
 import collections
+import re
 import sys
 try:
     import multiprocessing