diff --git a/addons/mass_mailing/static/src/js/mailing_m2o_filter.js b/addons/mass_mailing/static/src/js/mailing_m2o_filter.js
index a93d63bd2ed..a5b82c96c34 100644
--- a/addons/mass_mailing/static/src/js/mailing_m2o_filter.js
+++ b/addons/mass_mailing/static/src/js/mailing_m2o_filter.js
@@ -58,7 +58,7 @@ export class FieldMany2OneMailingFilter extends Many2OneField {
             return;
         }
         const filterCount = this.props.record.data.mailing_filter_count;
-        const dropdown = document.querySelectorAll('.o_field_many2one_selection > .o_input_dropdown')[1]
+        const dropdown = document.querySelector('.o_field_mailing_filter > .o_field_many2one_selection > .o_input_dropdown')
         if (dropdown) {
             dropdown.classList.toggle('d-none', !filterCount);
         }