diff --git a/tests/unit/utils/path_join_test.py b/tests/unit/utils/path_join_test.py
index b3a17f1eb8..ecc783ba67 100644
--- a/tests/unit/utils/path_join_test.py
+++ b/tests/unit/utils/path_join_test.py
@@ -24,6 +24,9 @@ ensure_in_syspath('../../')
 # Import salt libs
 from salt.utils import path_join
 
+# Import 3rd-party libs
+import salt.ext.six as six
+
 
 class PathJoinTestCase(TestCase):
 
@@ -102,7 +105,7 @@ class PathJoinTestCase(TestCase):
 
         code = """'''Salt unittest loaded NT module'''"""
         module = imp.new_module('nt')
-        exec code in module.__dict__
+        six.exec_(code, module.__dict__)
         sys.modules['nt'] = module
 
         sys.builtin_module_names = modules