diff --git a/mayan/apps/navigation/classes.py b/mayan/apps/navigation/classes.py
index 6eb2396584..fa1feef3bc 100644
--- a/mayan/apps/navigation/classes.py
+++ b/mayan/apps/navigation/classes.py
@@ -87,12 +87,13 @@ class Menu(object):
         for resolved_navigation_object in resolved_navigation_object_list:
             for source, links in self.bound_links.iteritems():
                 try:
-                    if inspect.isclass(source) and isinstance(resolved_navigation_object, source) or source == CombinedSource(obj=resolved_navigation_object, view=current_view):
+                    if inspect.isclass(source) and isinstance(resolved_navigation_object, source) or source == CombinedSource(obj=resolved_navigation_object.__class__, view=current_view):
                         for link in links:
                             resolved_link = link.resolve(context=context, resolved_object=resolved_navigation_object)
                             if resolved_link:
                                 result.append(resolved_link)
                         #break  # No need for further content object match testing
+                        # TODO: profile this
 
                 except TypeError:
                     # When source is a dictionary