diff --git a/libreplan-webapp/src/main/webapp/dashboard/_globalProgress.zul b/libreplan-webapp/src/main/webapp/dashboard/_globalProgress.zul
index 0590c67f4..ba39d7edd 100644
--- a/libreplan-webapp/src/main/webapp/dashboard/_globalProgress.zul
+++ b/libreplan-webapp/src/main/webapp/dashboard/_globalProgress.zul
@@ -57,6 +57,7 @@
             placement: 'outside',
         },
         render: function(data, params) {
+            params = jQuery.parseJSON(params);
             if (params['title'] !== undefined) {
                 this.title = params['title'];
             }