diff --git a/src/Controllers/AdminController.php b/src/Controllers/AdminController.php
index 38c77a1..c6380d2 100755
--- a/src/Controllers/AdminController.php
+++ b/src/Controllers/AdminController.php
@@ -30,7 +30,7 @@ class AdminController extends Model
         }
         
         $stmt = $this->pdo->prepare("
-            SELECT u.id, u.username, u.email, u.role, u.created_at,
+            SELECT DISTINCT u.id, u.username, u.email, u.role, u.created_at,
                    uns.telegram_chat_id, uns.email_for_alerts
             FROM users u
             LEFT JOIN user_notification_settings uns ON u.id = uns.user_id