diff --git a/README.md b/README.md
index 33fc8c1..c7e0de1 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,7 @@ return [
     'resource' => [
         'class' => EmailResource::class,
         'model' => Email::class,
+        'cluster' => null,
         'group' => null,
         'sort' => null,
         'icon' => null,
diff --git a/config/filament-email.php b/config/filament-email.php
index 275fd24..b9061b0 100644
--- a/config/filament-email.php
+++ b/config/filament-email.php
@@ -8,6 +8,7 @@
     'resource' => [
         'class' => EmailResource::class,
         'model' => Email::class,
+        'cluster' => null,
         'group' => null,
         'sort' => null,
         'icon' => null,
diff --git a/src/Filament/Resources/EmailResource.php b/src/Filament/Resources/EmailResource.php
index 5b3b9aa..fcc8e7c 100644
--- a/src/Filament/Resources/EmailResource.php
+++ b/src/Filament/Resources/EmailResource.php
@@ -42,6 +42,14 @@ public static function getBreadcrumb(): string
         return __('filament-email::filament-email.email_log');
     }
 
+    /**
+     * @return class-string<Cluster> | null
+     */
+    public static function getCluster(): ?string
+    {
+        return config('filament-email.resource.cluster');
+    }
+
     public static function getNavigationLabel(): string
     {
         return config('filament-email.label') ?? __('filament-email::filament-email.navigation_label');