Index: trunk/core/kernel/utility/unit_config_reader.php
===================================================================
diff -u -r3145 -r3162
--- trunk/core/kernel/utility/unit_config_reader.php	(.../unit_config_reader.php)	(revision 3145)
+++ trunk/core/kernel/utility/unit_config_reader.php	(.../unit_config_reader.php)	(revision 3162)
@@ -192,7 +192,7 @@
 					if($config_found) include_once(FULL_PATH.$filename);
 				}
 
-				if($config_found)
+				if($config_found && isset($config) && $config)
 				{
 					$prefix = $config['Prefix'];