diff --git a/jedi/api/completion.py b/jedi/api/completion.py
index fb15031b..45de5f46 100644
--- a/jedi/api/completion.py
+++ b/jedi/api/completion.py
@@ -234,11 +234,10 @@ class Completion:
         if cls.start_pos[1] >= leaf.start_pos[1]:
             return
 
-        names_dicts = cls.names_dicts(search_global=False, is_instance=True)
+        filters = cls.get_filters(search_global=False, is_instance=True)
         # The first dict is the dictionary of class itself.
-        next(names_dicts)
-        for names_dict in names_dicts:
-            for values in names_dict.values():
-                for value in values:
-                    if (value.parent.type == 'funcdef') == is_function:
-                        yield value
+        next(filters)
+        for filter in filters:
+            for name in filter.values():
+                if (name.parent.type == 'funcdef') == is_function:
+                    yield name
diff --git a/jedi/evaluate/compiled/__init__.py b/jedi/evaluate/compiled/__init__.py
index 26bf98dc..f89de013 100644
--- a/jedi/evaluate/compiled/__init__.py
+++ b/jedi/evaluate/compiled/__init__.py
@@ -332,8 +332,8 @@ class CompiledObjectFilter(AbstractFilter):
     """
     name_class = CompiledName
 
-    def __init__(self, evaluator, compiled_obj, origin_scope, is_instance=False):
-        super(CompiledObjectFilter, self).__init__(origin_scope)
+    def __init__(self, evaluator, compiled_obj, is_instance=False):
+        super(CompiledObjectFilter, self).__init__(None)
         self._evaluator = evaluator
         self._compiled_obj = compiled_obj
         self._is_instance = is_instance
diff --git a/jedi/evaluate/representation.py b/jedi/evaluate/representation.py
index d417b858..72bbd554 100644
--- a/jedi/evaluate/representation.py
+++ b/jedi/evaluate/representation.py
@@ -554,10 +554,10 @@ class Class(use_metaclass(CachedMetaClass, Wrapper)):
         else:
             for scope in self.py__mro__():
                 if isinstance(scope, compiled.CompiledObject):
-                    for filter in scope.get_filters():
+                    for filter in scope.get_filters(is_instance=is_instance):
                         yield filter
                 else:
-                    yield ParserTreeFilter(self._evaluator, self.base)
+                    yield ParserTreeFilter(self._evaluator, scope.base)
 
     def is_class(self):
         return True