diff --git a/ryu/tests/unit/lib/test_addrconv.py b/ryu/tests/unit/lib/test_addrconv.py
index 00a42db2..39e486dc 100644
--- a/ryu/tests/unit/lib/test_addrconv.py
+++ b/ryu/tests/unit/lib/test_addrconv.py
@@ -17,7 +17,7 @@
 import unittest
 from nose.tools import eq_
 
-import addrconv
+from ryu.lib import addrconv
 
 
 class Test_addrconv(unittest.TestCase):