diff --git a/wpsc-includes/purchase-log.class.php b/wpsc-includes/purchase-log.class.php
index e3809eccd5..6902bbed91 100644
--- a/wpsc-includes/purchase-log.class.php
+++ b/wpsc-includes/purchase-log.class.php
@@ -555,7 +555,7 @@ public function __construct( $value = false, $col = 'id' ) {
 
 		global $wpdb;
 
-		if ( ! in_array( $col, array( 'id', 'sessionid' ) ) ) {
+		if ( ! in_array( $col, array( 'id', 'sessionid', 'transactid' ) ) ) {
 			return;
 		}