Index: trunk/core/units/general/cat_event_handler.php
===================================================================
diff -u -r3578 -r3579
--- trunk/core/units/general/cat_event_handler.php	(.../cat_event_handler.php)	(revision 3578)
+++ trunk/core/units/general/cat_event_handler.php	(.../cat_event_handler.php)	(revision 3579)
@@ -745,6 +745,10 @@
 					$exploded = explode('.', $foreign_field);
 					$foreign_table = TABLE_PREFIX.$exploded[0];
 
+					if($search_config[$field]['CustomFieldId']) {
+						$exploded[1] = 'l'.$lang.'_'.$exploded[1];
+					}
+
 					$alias_counter++;
 					$alias = 't'.$alias_counter;