diff --git a/addons/website/static/src/scss/website.editor.ui.scss b/addons/website/static/src/scss/website.editor.ui.scss
index 353be1efed1..422ac472f82 100644
--- a/addons/website/static/src/scss/website.editor.ui.scss
+++ b/addons/website/static/src/scss/website.editor.ui.scss
@@ -112,6 +112,7 @@
         flex: 1 1 auto;
 
         .ace_gutter {
+            display: block !important; // display even with aria-hidden
             cursor: ew-resize;
 
             .ace_gutter-cell.o_error {