diff --git a/addons/website/views/themes.xml b/addons/website/views/themes.xml
index c86633b6be2..d92f91b0143 100644
--- a/addons/website/views/themes.xml
+++ b/addons/website/views/themes.xml
@@ -162,7 +162,7 @@
 
 <template id="option_bootstrap_less" name="option_bootstrap_less" inherit_id="website.theme" active="False" customize_show="False">
     <xpath expr="//link[@id='bootstrap_css']" position="replace">
-        <link rel="stylesheet" href='/website/static/src/less/import_bootstrap.less'/>
+        <link id="bootstrap_css" rel="stylesheet" href='/website/static/src/less/import_bootstrap.less'/>
         <link rel="stylesheet" href='/website/static/src/less/colors.less'/>
     </xpath>
 </template>