diff --git a/test/test_slots.py b/test/test_slots.py
index 8e6c4f2..a8bc210 100644
--- a/test/test_slots.py
+++ b/test/test_slots.py
@@ -141,7 +141,7 @@ def test_slots_config():
                           'a',
                           None,
                           ConfigBag(c._config_bag.context))
-    sc = c._config_bag.context.get_subconfig('a', option_bag)
+    sc = c._config_bag.context.get_subconfig(option_bag)
     assert isinstance(sc, SubConfig)
     raises(AttributeError, "sc.x = 1")
     raises(AttributeError, "sc.cfgimpl_x = 1")
diff --git a/tiramisu/api.py b/tiramisu/api.py
index e13d801..718826d 100644
--- a/tiramisu/api.py
+++ b/tiramisu/api.py
@@ -500,8 +500,7 @@ class _TiramisuOptionValueOptionDescription:
         """Dict with path as key and value"""
         self._get_option()
         name = self._option_bag.option.impl_getname()
-        subconfig = self._subconfig.get_subconfig(name,
-                                                 self._option_bag)
+        subconfig = self._subconfig.get_subconfig(self._option_bag)
         config_bag = self._option_bag.config_bag
         if config_bag.properties and 'warnings' in config_bag.properties:
             config_bag = config_bag.copy()
@@ -607,8 +606,7 @@ class _TiramisuOptionDescription(_TiramisuOption):
                               path,
                               None,
                               self._config_bag)
-        subconfig = self._subconfig.get_subconfig(oname,
-                                                 option_bag)
+        subconfig = self._subconfig.get_subconfig(option_bag)
         for path in subconfig.find(byname=name,
                                    byvalue=value,
                                    bytype=type,
@@ -665,8 +663,7 @@ class _TiramisuOptionDescription(_TiramisuOption):
                                   None,
                                   self._config_bag)
             if opt.impl_is_optiondescription():
-                self._subconfig.get_subconfig(name,
-                                              option_bag)
+                self._subconfig.get_subconfig(option_bag)
             else:
                 subconfig.getattr(name,
                                   option_bag)
@@ -686,12 +683,11 @@ class _TiramisuOptionDescription(_TiramisuOption):
                               path,
                               None,
                               self._config_bag)
-        subconfig = self._subconfig.get_subconfig(name,
-                                                  option_bag)
+        subconfig = self._subconfig.get_subconfig(option_bag)
         for opt in option.get_children(self._config_bag):
             try:
-                subsubconfig = self._filter(opt,
-                                            subconfig)
+                self._filter(opt,
+                             subconfig)
             except PropertiesOptionError:
                 continue
             if opt.impl_is_optiondescription():
@@ -1006,27 +1002,30 @@ class TiramisuContextOption(TiramisuContext):
         return self._find(name, value, type)
 
     def _filter(self,
-                opt):
+                opt,
+                subconfig):
         if self._config_bag.properties:
             option_bag = OptionBag()
-            path = opt.impl_getpath()
             option_bag.set_option(opt,
-                                  path,
+                                  opt.impl_getpath(),
                                   None,
                                   self._config_bag)
             if opt.impl_is_optiondescription():
                 self._config_bag.context.cfgimpl_get_settings().validate_properties(option_bag)
-            else:
-                self._config_bag.context.getattr(path,
-                                                 option_bag)
+                return subconfig.get_subconfig(option_bag)
+            subconfig.getattr(opt.impl_getname(),
+                              option_bag)
+
     def _walk(self,
               option,
               recursive,
               type_,
-              group_type):
+              group_type,
+              subconfig):
         for opt in option.get_children(self._config_bag):
             try:
-                subsubconfig = self._filter(opt)
+                subsubconfig = self._filter(opt,
+                                            subconfig)
             except PropertiesOptionError:
                 continue
             if opt.impl_is_optiondescription():
@@ -1034,16 +1033,16 @@ class TiramisuContextOption(TiramisuContext):
                     for toption in self._walk(opt,
                                               recursive,
                                               type_,
-                                              group_type):
+                                              group_type,
+                                              subsubconfig):
                         yield toption
                 if type_ == 'option' or (type_ == 'optiondescription' and \
                         group_type and opt.impl_get_group_type() != group_type):
                     continue
             elif type_ == 'optiondescription':
                 continue
+            name = opt.impl_getname()
             path = opt.impl_getpath()
-            subconfig, name = self._config_bag.context.cfgimpl_get_home_by_path(path,
-                                                                                self._config_bag)
             yield TiramisuOption(name,
                                  path,
                                  None,
@@ -1062,7 +1061,8 @@ class TiramisuContextOption(TiramisuContext):
         for toption in self._walk(option,
                                   recursive,
                                   type,
-                                  group_type):
+                                  group_type,
+                                  self._config_bag.context):
             yield toption
 
 
diff --git a/tiramisu/config.py b/tiramisu/config.py
index 7555175..5670f93 100644
--- a/tiramisu/config.py
+++ b/tiramisu/config.py
@@ -210,8 +210,7 @@ class SubConfig(object):
                                   config_bag)
             if fromconsistency is not None:
                 option_bag.fromconsistency = fromconsistency
-            self = self.get_subconfig(step,
-                                      option_bag)
+            self = self.get_subconfig(option_bag)
         assert isinstance(self, SubConfig), _('unknown option {}').format(path[-1])
         return self, path[-1]
 
@@ -268,7 +267,6 @@ class SubConfig(object):
         return subpath
 
     def get_subconfig(self,
-                      name,
                       option_bag):
         if option_bag.fromconsistency:
             fromconsistency = option_bag.fromconsistency.copy()
diff --git a/tiramisu/value.py b/tiramisu/value.py
index d1e6144..1089c87 100644
--- a/tiramisu/value.py
+++ b/tiramisu/value.py
@@ -538,8 +538,7 @@ class Values(object):
                                           path,
                                           None,
                                           od_config_bag)
-                    subsubconfig = subconfig.get_subconfig(name,
-                                                           option_bag)
+                    subsubconfig = subconfig.get_subconfig(option_bag)
                 except PropertiesOptionError as err:
                     pass
                 else: