diff --git a/app/Controller/AttributesController.php b/app/Controller/AttributesController.php
index 2d6f13691f8..9694cfac8b8 100644
--- a/app/Controller/AttributesController.php
+++ b/app/Controller/AttributesController.php
@@ -1576,7 +1576,7 @@ public function search($continue = false)
 
             // Force index for performance reasons see #3321
             if (isset($filters['value'])) {
-                $this->paginate['forceIndexHint'] = '(value1, value2)';
+                $this->paginate['forceIndexHint'] = 'value1, value2';
             }
 
             $this->paginate['conditions'] = $params['conditions'];
diff --git a/tests/testlive_comprehensive_local.py b/tests/testlive_comprehensive_local.py
index 52de96262bd..a7926df6fca 100644
--- a/tests/testlive_comprehensive_local.py
+++ b/tests/testlive_comprehensive_local.py
@@ -923,6 +923,9 @@ def test_event_alert_default_enabled(self):
             self.assertTrue(created_user.autoalert, created_user)
             self.admin_misp_connector.delete_user(created_user)
 
+    def test_attribute_search(self):
+        request(self.admin_misp_connector, "GET", "/attributes/search/value:8.8.8.8.json")
+
     def test_search_snort_suricata(self):
         event = create_simple_event()
         event.add_attribute('ip-src', '8.8.8.8', to_ids=True)