diff --git a/src/gui_menu_builder.py b/src/gui_menu_builder.py
index 32e9dee26eb6a9feaaaca2ad4407a3ad01b24bdc..157b69718616d5bf13b60655a744d8b3094fb921 100644
--- a/src/gui_menu_builder.py
+++ b/src/gui_menu_builder.py
@@ -31,6 +31,7 @@ def build_resources_submenu(contacts, account, action, room_jid=None,
 room_account=None, cap=None):
 	''' Build a submenu with contact's resources.
 	room_jid and room_account are for action self.on_invite_to_room '''
+	roster = gajim.interface.roster
 	sub_menu = gtk.Menu()
 
 	iconset = gajim.config.get('iconset')