--- a/src/pyams_thesaurus/term.py	Tue Sep 18 16:27:26 2018 +0200
+++ b/src/pyams_thesaurus/term.py	Tue Nov 27 17:21:15 2018 +0100
@@ -12,32 +12,28 @@
 
 __docformat__ = 'restructuredtext'
 
-
-# import standard library
 from datetime import datetime
 
-# import interfaces
-from pyams_thesaurus.interfaces.extension import IThesaurusTermExtension
-from pyams_thesaurus.interfaces.term import STATUS_PUBLISHED, IThesaurusTerm, IThesaurusTermsContainer, \
-    IThesaurusLoaderTerm
-from pyams_thesaurus.interfaces.thesaurus import IThesaurus, IThesaurusExtract
-from pyams_utils.interfaces.tree import INode
-from zope.lifecycleevent.interfaces import IObjectAddedEvent, IObjectRemovedEvent, IObjectModifiedEvent, \
-    IObjectMovedEvent
+from persistent import Persistent
+from pyramid.events import subscriber
+from zope.container.contained import Contained
+from zope.interface import alsoProvides, implementer, noLongerProvides
+from zope.lifecycleevent.interfaces import IObjectAddedEvent, IObjectModifiedEvent, IObjectMovedEvent, \
+    IObjectRemovedEvent
+from zope.schema.fieldproperty import FieldProperty
 from zope.traversing.interfaces import ITraversable
 
-# import packages
-from persistent import Persistent
-from pyams_catalog.utils import index_object, unindex_object, reindex_object
-from pyams_utils.adapter import adapter_config, ContextAdapter
+from pyams_catalog.utils import index_object, reindex_object, unindex_object
+from pyams_thesaurus.interfaces.extension import IThesaurusTermExtension
+from pyams_thesaurus.interfaces.term import IThesaurusLoaderTerm, IThesaurusTerm, IThesaurusTermsContainer, \
+    STATUS_PUBLISHED
+from pyams_thesaurus.interfaces.thesaurus import IThesaurus, IThesaurusExtract
+from pyams_utils.adapter import ContextAdapter, adapter_config
+from pyams_utils.interfaces.tree import INode
 from pyams_utils.registry import query_utility
 from pyams_utils.timezone import tztime
 from pyams_utils.traversing import get_parent
 from pyams_utils.unicode import translate_string
-from pyramid.events import subscriber
-from zope.container.contained import Contained
-from zope.interface import implementer, alsoProvides, noLongerProvides
-from zope.schema.fieldproperty import FieldProperty
 
 
 REVERSE_LINK_ATTRIBUTES = {'generic': 'specifics',
@@ -232,8 +228,9 @@
             self._extensions = new_value
 
     def query_extensions(self):
-        return [util for util in [query_utility(IThesaurusTermExtension, ext) for ext in self.extensions]
-                if util is not None]
+        return sorted([util for util in [query_utility(IThesaurusTermExtension, ext) for ext in self.extensions]
+                       if util is not None],
+                      key=lambda x: getattr(x, 'weight', 999))
 
     @property
     def created(self):