diff --git a/venus/hacking/checks.py b/venus/hacking/checks.py
index 344c60c..c3cf900 100644
--- a/venus/hacking/checks.py
+++ b/venus/hacking/checks.py
@@ -204,4 +204,5 @@ def import_stock_mock(logical_line):
     N366
     """
     if logical_line == 'import mock':
-        yield 0, msg.get(366)
+        yield (0, "N366: You must explicitly import python's mock: "
+                  "``from unittest import mock``")
diff --git a/venus/tests/test_hacking.py b/venus/tests/test_hacking.py
index c101929..0a4dc21 100644
--- a/venus/tests/test_hacking.py
+++ b/venus/tests/test_hacking.py
@@ -153,8 +153,11 @@ class HackingTestCase(unittest.TestCase):
     def test_import_stock_mock(self):
         self.assertEqual(1, len(list(checks.import_stock_mock(
             'import mock'))))
-        self.assertEqual(0, len(list(checks.import_stock_mock(
-            'from unittest import mock'))))
+        code = """
+                    from unittest import mock
+                    import unittest.mock
+               """
+        self.assertEqual(0, len(list(checks.import_stock_mock(code))))
 
     def test_no_xrange(self):
         line = 'xrange(10)'