diff --git a/addons/website/static/src/js/website.js b/addons/website/static/src/js/website.js
index 682a6175086..fc3a8e570cc 100644
--- a/addons/website/static/src/js/website.js
+++ b/addons/website/static/src/js/website.js
@@ -12,7 +12,8 @@
     website.get_context = function (dict) {
         var html = document.documentElement;
         return _.extend({
-            lang: html.getAttribute('lang').replace('-', '_')
+            lang: html.getAttribute('lang').replace('-', '_'),
+            website_id: html.getAttribute('data-website-id')|0
         }, dict);
     };
 
diff --git a/addons/website/views/website_templates.xml b/addons/website/views/website_templates.xml
index f14bee88e9a..886e3868662 100644
--- a/addons/website/views/website_templates.xml
+++ b/addons/website/views/website_templates.xml
@@ -29,9 +29,9 @@
             </li>
         </template>
 
-        <template id="layout" name="Main layout">
-                &lt;!DOCTYPE html&gt;
+        <template id="layout" name="Main layout">&lt;!DOCTYPE html&gt;
                 <html t-att-lang="lang.replace('_', '-')"
+                      t-att-data-website-id="website.id if editable else None"
                       t-att-data-editable="'1' if editable else None"
                       t-att-data-translatable="'1' if translatable else None"
                       t-att-data-view-xmlid="xmlid if editable else None"