diff --git a/administrator/components/com_patchtester/PatchTester/Model/PullModel.php b/administrator/components/com_patchtester/PatchTester/Model/PullModel.php
index 1743df0..8981084 100644
--- a/administrator/components/com_patchtester/PatchTester/Model/PullModel.php
+++ b/administrator/components/com_patchtester/PatchTester/Model/PullModel.php
@@ -387,9 +387,16 @@ class PullModel extends AbstractModel
 						return;
 					}
 
-					require_once $path . '/libraries/vendor/composer/autoload_static.php';
+					// Check if the class is already defined
 					$autoloadClass = '\Composer\Autoload\ComposerStaticInit' . $match[1];
 
+					if (class_exists($autoloadClass))
+					{
+						return;
+					}
+
+					require_once $path . '/libraries/vendor/composer/autoload_static.php';
+
 					// Get all the files
 					$files = $autoloadClass::$files;