diff -r da5f1fa46f2b -r fb73a6b6622d xmlclass/xmlclass.py
--- a/xmlclass/xmlclass.py	Thu Oct 19 10:57:35 2017 +0300
+++ b/xmlclass/xmlclass.py	Thu Oct 19 11:03:03 2017 +0300
@@ -945,7 +945,7 @@
             equivalences[self.etreeNamespaceFormat % name] = True
 
     def AddDistinctionBetweenParentsInLookupClass(
-                                    self, lookup_classes, parent, typeinfos):
+            self, lookup_classes, parent, typeinfos):
         parent = (self.etreeNamespaceFormat % parent
                   if parent is not None else None)
         parent_class = lookup_classes.get(parent)