diff --git a/neutron/plugins/nicira/extensions/maclearning.py b/neutron/plugins/nicira/extensions/maclearning.py
index ebd047da39..2be7e226e0 100644
--- a/neutron/plugins/nicira/extensions/maclearning.py
+++ b/neutron/plugins/nicira/extensions/maclearning.py
@@ -31,7 +31,7 @@ EXTENDED_ATTRIBUTES_2_0 = {
 
 
 class Maclearning(object):
-    """Extension class supporting port security."""
+    """Extension class supporting port mac learning."""
 
     @classmethod
     def get_name(cls):