diff --git a/core/metamodel.class.php b/core/metamodel.class.php
index a9cda18a1..d88ea0b25 100644
--- a/core/metamodel.class.php
+++ b/core/metamodel.class.php
@@ -4114,7 +4114,6 @@ if (!array_key_exists($sAttCode, self::$m_aAttribDefs[$sClass]))
 
 	public static function Startup($sConfigFile, $bModelOnly = false, $bAllowCache = true, $bTraceSourceFiles = false)
 	{
-		define('MODULESROOT', APPROOT.'modules/');
 		self::$m_bTraceSourceFiles = $bTraceSourceFiles;
 
 		self::LoadConfig($sConfigFile, $bAllowCache);
@@ -4813,4 +4812,4 @@ MetaModel::RegisterZList("preview", array("description"=>"All attributes visible
 MetaModel::RegisterZList("standard_search", array("description"=>"List of criteria for the standard search", "type"=>"filters"));
 MetaModel::RegisterZList("advanced_search", array("description"=>"List of criteria for the advanced search", "type"=>"filters"));
 
-?>
\ No newline at end of file
+?>