diff --git a/addons/web_editor/static/src/scss/web_editor.ui.scss b/addons/web_editor/static/src/scss/web_editor.ui.scss
index 3581df3bf8b..1bfdb439722 100644
--- a/addons/web_editor/static/src/scss/web_editor.ui.scss
+++ b/addons/web_editor/static/src/scss/web_editor.ui.scss
@@ -1239,6 +1239,7 @@ body.editor_enable {
         height: 70%; // in case flex is not supported
         flex: 1 1 auto;
         .ace_gutter {
+            display: block!important; // display even with aria-hidden
             cursor: ew-resize;
 
             .ace_gutter-cell.o_error {