diff --git a/src/Model.php b/src/Model.php
index d123ed6f..487e6984 100644
--- a/src/Model.php
+++ b/src/Model.php
@@ -235,13 +235,17 @@ public static function setInvoker(callable $callable): void
      */
     public function invoke($method, array $vars = [])
     {
+        if (is_string($method)) {
+            $method = [$this, $method];
+        }
+
         if (self::$invoker) {
             $call = self::$invoker;
 
-            return $call($method instanceof Closure ? $method : Closure::fromCallable([$this, $method]), $vars);
+            return $call($method instanceof Closure ? $method : Closure::fromCallable($method), $vars);
         }
 
-        return call_user_func_array($method instanceof Closure ? $method : [$this, $method], $vars);
+        return call_user_func_array($method, $vars);
     }
 
     /**
diff --git a/src/model/concern/ModelEvent.php b/src/model/concern/ModelEvent.php
index 136537e7..ae0b1975 100644
--- a/src/model/concern/ModelEvent.php
+++ b/src/model/concern/ModelEvent.php
@@ -93,7 +93,7 @@ protected function trigger(string $event): bool
             }
 
             if (method_exists($observer, $call)) {
-                $result = call_user_func([$observer, $call], $this);
+                $result = $this->invoke([$observer, $call], [$this]);
             } elseif (is_object(self::$event) && method_exists(self::$event, 'trigger')) {
                 $result = self::$event->trigger(static::class . '.' . $event, $this);
                 $result = empty($result) ? true : end($result);