diff --git a/src/system/modules/metamodels/MetaModels/Helper/ToolboxFile.php b/src/system/modules/metamodels/MetaModels/Helper/ToolboxFile.php
index <HASH>..<HASH> 100644
--- a/src/system/modules/metamodels/MetaModels/Helper/ToolboxFile.php
+++ b/src/system/modules/metamodels/MetaModels/Helper/ToolboxFile.php
@@ -74,7 +74,7 @@ class ToolboxFile
 	 *
 	 * @var array
 	 */
-	protected $foundFiles;
+	protected $foundFiles = array();
 
 	/**
 	 * The folders to process in this instance.
Fix issue #<I> - Found files is not initialized as array.