diff --git a/web_advanced_search/static/src/js/RecordPicker.esm.js b/web_advanced_search/static/src/js/RecordPicker.esm.js
index 91362767f..fa725f645 100644
--- a/web_advanced_search/static/src/js/RecordPicker.esm.js
+++ b/web_advanced_search/static/src/js/RecordPicker.esm.js
@@ -31,6 +31,7 @@ patch(Dropdown.prototype, "dropdown", {
 });
 
 export const FakeMany2oneFieldWidget = FieldMany2One.extend(FieldManagerMixin, {
+    supportedFieldTypes: ["many2many", "many2one", "one2many"],
     /**
      * @override
      */
diff --git a/web_advanced_search/static/src/legacy/js/control_panel/custom_filter_item.esm.js b/web_advanced_search/static/src/legacy/js/control_panel/custom_filter_item.esm.js
index 50f34357f..2fb42f881 100644
--- a/web_advanced_search/static/src/legacy/js/control_panel/custom_filter_item.esm.js
+++ b/web_advanced_search/static/src/legacy/js/control_panel/custom_filter_item.esm.js
@@ -22,6 +22,8 @@ patch(CustomFilterItem.prototype, "web_advanced_search.legacy.CustomFilterItem",
     async willStart() {
         this.OPERATORS.relational = this.OPERATORS.char;
         this.FIELD_TYPES.many2one = "relational";
+        this.FIELD_TYPES.many2many = "relational";
+        this.FIELD_TYPES.one2many = "relational";
         return this._super(...arguments);
     },
     /**
diff --git a/web_advanced_search/static/src/search/filter_menu/custom_filter_item.xml b/web_advanced_search/static/src/search/filter_menu/custom_filter_item.xml
index ca0554ada..285d6f88b 100644
--- a/web_advanced_search/static/src/search/filter_menu/custom_filter_item.xml
+++ b/web_advanced_search/static/src/search/filter_menu/custom_filter_item.xml
@@ -8,7 +8,7 @@
     <t t-inherit="web.CustomFilterItem" t-inherit-mode="extension" owl="1">
         <xpath expr="//select[@t-elif]" position="after">
             <t
-                t-elif="fieldType === 'many2one' and ['=', '!='].includes(selectedOperator.symbol)"
+                t-elif="['many2one', 'many2many', 'one2many'].includes(fieldType) and ['=', '!='].includes(selectedOperator.symbol)"
             >
                 <RecordPicker
                     model="fields[condition.field].relation"