diff --git a/Command.php b/Command.php
index 9b05afd..2b5161e 100644
--- a/Command.php
+++ b/Command.php
@@ -81,7 +81,11 @@ class Command extends Component
      */
     public function exists(): bool
     {
-        return count($this->search('fetch')) > 0;
+        $data = $this->search('fetch');
+        if (!$data) {
+            return false;
+        }
+        return true;
     }
 
     /**