diff --git a/src/pyxml.py b/src/pyxml.py
index 9d11236f5936527e834151006a08eafc6b66529f..836f7751cd36d86be3fc7a48c7069e58de29bf4c 100644
--- a/src/pyxml.py
+++ b/src/pyxml.py
@@ -32,6 +32,7 @@ from xml.sax.saxutils import escape
 # Its not trivial because we want to inherit from a list or
 # from a dict, but we want both instances to inherit from Entries.
 # Also we want the factory to be Entries and not a function.
+# Ps: This is a metaclass.
 class Entries(object):
     def __new__(clazz, obj, *args, **kwargs):
         class _Entries(Entries, type(obj)):