diff --git a/application/themehandler.class.inc.php b/application/themehandler.class.inc.php
index de2fb21ca..192cbe1da 100644
--- a/application/themehandler.class.inc.php
+++ b/application/themehandler.class.inc.php
@@ -57,6 +57,10 @@ class ThemeHandler
 	{
 		try
 		{
+			if (is_null(MetaModel::GetConfig()))
+			{
+				throw new CoreException('no config');
+			}
 			$sThemeId = MetaModel::GetConfig()->Get('backoffice_default_theme');
 		}
 		catch(CoreException $oCompileException)