diff --git a/addons/web_livechat/publisher_warranty.py b/addons/web_livechat/publisher_warranty.py
index 07f5430a136..ab83bc58c32 100644
--- a/addons/web_livechat/publisher_warranty.py
+++ b/addons/web_livechat/publisher_warranty.py
@@ -22,9 +22,21 @@
 from osv import osv
 from tools import cache
 
+def _gen_cache_clear(method):
+    def func(self, cr, *args, **kwargs):
+        s = super(publisher_warranty_contract, self)
+        r = getattr(s, method)(cr, *args, **kwargs)
+        self.is_livechat_enable.clear_cache(cr.dbname)
+        return r
+    return func
+
 class publisher_warranty_contract(osv.osv):
     _inherit = 'publisher_warranty.contract'
 
+    create = _gen_cache_clear('create')
+    write = _gen_cache_clear('write')
+    unlink = _gen_cache_clear('unlink')
+
     @cache(skiparg=3, timeout=300)
     def is_livechat_enable(self, cr, uid):
         domain = [('state', '=', 'valid'), ('check_support', '=', True)]