diff --git a/chat/indico_chat/views.py b/chat/indico_chat/views.py
index 41d5422..163d819 100644
--- a/chat/indico_chat/views.py
+++ b/chat/indico_chat/views.py
@@ -36,4 +36,4 @@ class WPChatEventPage(WPJinjaMixinPlugin, WPConferenceDefaultDisplayBase):
 
 class WPChatEventMgmt(WPJinjaMixinPlugin, WPConferenceModifBase):
     def _setActiveSideMenuItem(self):
-        self._pluginMenuItems['chat-management'].setActive(True)
+        self.extra_menu_items['chat-management'].setActive(True)
diff --git a/piwik/indico_piwik/views.py b/piwik/indico_piwik/views.py
index f3835c3..2b27a9e 100644
--- a/piwik/indico_piwik/views.py
+++ b/piwik/indico_piwik/views.py
@@ -20,4 +20,4 @@ from MaKaC.webinterface.pages.conferences import WPConferenceModifBase
 
 class WPStatistics(WPJinjaMixinPlugin, WPConferenceModifBase):
     def _setActiveSideMenuItem(self):
-        self._pluginMenuItems['statistics'].setActive()
+        self.extra_menu_items['statistics'].setActive()