diff --git a/addons/web/static/src/js/views/form_common.js b/addons/web/static/src/js/views/form_common.js
index 65e94e671eb..d99c7ed2d2e 100644
--- a/addons/web/static/src/js/views/form_common.js
+++ b/addons/web/static/src/js/views/form_common.js
@@ -245,7 +245,6 @@ var CompletionFieldMixin = {
                 values.push({
                     label: _t("No results to show..."),
                     action: function() {},
-                    classname: 'o_m2o_dropdown_option'
                 });
             }