Index: cat_dbitem_export_helper.php
===================================================================
--- cat_dbitem_export_helper.php	(revision 14360)
+++ cat_dbitem_export_helper.php	(working copy)
@@ -697,7 +697,7 @@
 				$this->curItem->CategoryPath[ (int)substr($field_name, 8) - 1 ] = $value;
 			}
 			elseif (substr($field_name, 0, 20) == '__CATEGORY__Category') {
-				$this->curItem->CategoryPath[ (int)substr($field_name, 20) ] = $value;
+				$this->curItem->CategoryPath[ (int)substr($field_name, 20) - 1 ] = $value;
 			}
 			elseif (substr($field_name, 0, 11) == '__VIRTUAL__') {
 				$field_name = substr($field_name, 11);