diff --git a/openerp/addons/base/static/src/js/apps.js b/openerp/addons/base/static/src/js/apps.js
index 8e11f07d0d3..4ac01006256 100644
--- a/openerp/addons/base/static/src/js/apps.js
+++ b/openerp/addons/base/static/src/js/apps.js
@@ -56,7 +56,8 @@ openerp.base = function(instance) {
                     });
 
                 };
-                i.src = _.str.sprintf('%s/web/static/src/img/sep-a.gif', client.origin);
+                var ts = new Date().getTime();
+                i.src = _.str.sprintf('%s/web/static/src/img/sep-a.gif?%s', client.origin, ts);
                 return d.promise();
             };
             if (instance.base.apps_client) {