diff --git a/python/google/protobuf/internal/proto_builder_test.py b/python/google/protobuf/internal/proto_builder_test.py
index 6a8644b0..822ad895 100644
--- a/python/google/protobuf/internal/proto_builder_test.py
+++ b/python/google/protobuf/internal/proto_builder_test.py
@@ -36,7 +36,6 @@ try:
     from collections import OrderedDict
 except ImportError:
     from ordereddict import OrderedDict  #PY26
-import collections
 try:
   import unittest2 as unittest
 except ImportError: