diff --git a/modules/opencase_cases/src/CaseInvolvement.php b/modules/opencase_cases/src/CaseInvolvement.php
index c14aa66..2cd6e28 100644
--- a/modules/opencase_cases/src/CaseInvolvement.php
+++ b/modules/opencase_cases/src/CaseInvolvement.php
@@ -10,8 +10,11 @@ class CaseInvolvement {
 
   public static function userIsInvolved($account, $case) {
     $actorId = self::getLinkedActorId($account);        
-    $involvedIds = array_column($case->actors_involved->getValue(), 'target_id');
-    return in_array($actorId, $involvedIds);
+    $query = \Drupal::entityQuery('oc_case_provision')
+    ->condition('provider', $actorId)
+    ->condition('case', $case);
+    $results = $query->execute();
+    return !empty($results);
   }
 
   public static function userIsInvolved_activity($account, $activity) {