diff --git a/vtlib/Vtiger/FieldBasic.php b/vtlib/Vtiger/FieldBasic.php
index c79b5ec11d594ce21ee8f2bf1283e34e17b1f77b..3dcb3c6fc78b1b39d527e96a3171de9162d9dafe 100644
--- a/vtlib/Vtiger/FieldBasic.php
+++ b/vtlib/Vtiger/FieldBasic.php
@@ -40,6 +40,7 @@ class Vtiger_FieldBasic {
 	var	$info_type     = 'BAS';
 	var $isunique = false;
 	var $block;
+	var $headerfield = 0;
 
 	/**
 	 * Constructor