diff --git a/addons/website/static/src/less/website.ui.components.less b/addons/website/static/src/less/website.ui.components.less
index 8cbf1ba7d98..ffbc2257f8a 100644
--- a/addons/website/static/src/less/website.ui.components.less
+++ b/addons/website/static/src/less/website.ui.components.less
@@ -370,7 +370,6 @@ body .modal {
 }
 #theme_customize_modal {
     overflow: visible;
-    z-index: 1020;
     display: block;
     .modal-dialog {
         .o-position-absolute(@odoo-navbar-height + 10, 10px);