diff --git a/db/update17.6.1.sql b/db/update17.6.1.sql
index 9846b7562f..05a415e445 100644
--- a/db/update17.6.1.sql
+++ b/db/update17.6.1.sql
@@ -1,2 +1,4 @@
 ALTER TABLE `zt_product` ADD `shadow` tinyint(1) unsigned NOT NULL AFTER `code`;
 ALTER TABLE `zt_project` ADD `hasProduct` tinyint(1) unsigned NOT NULL DEFAULT 1 AFTER `code`;
+
+ALTER TABLE `zt_product` MODIFY `name` varchar(110) NOT NULL;
diff --git a/db/zentao.sql b/db/zentao.sql
index b39793fd2a..e92a6e2223 100755
--- a/db/zentao.sql
+++ b/db/zentao.sql
@@ -1096,7 +1096,7 @@ CREATE TABLE IF NOT EXISTS `zt_planstory` (
 CREATE TABLE IF NOT EXISTS `zt_product` (
   `id` mediumint(8) unsigned NOT NULL auto_increment,
   `program` mediumint(8) unsigned NOT NULL,
-  `name` varchar(90) NOT NULL,
+  `name` varchar(110) NOT NULL,
   `code` varchar(45) NOT NULL,
   `shadow` tinyint(1) unsigned NOT NULL,
   `bind` enum('0','1') NOT NULL DEFAULT '0',
diff --git a/module/project/model.php b/module/project/model.php
index 683afe62ca..4b1e6e31c9 100644
--- a/module/project/model.php
+++ b/module/project/model.php
@@ -1269,7 +1269,7 @@ class projectModel extends model
             {
                 /* If parent not empty, link products or create products. */
                 $product = new stdclass();
-                $product->name           = !$project->hasProduct ? "{$project->name}_{$projectID}" : ($this->post->productName ? $this->post->productName : $project->name);
+                $product->name           = !$project->hasProduct ? "SHADOW_{$project->name}_{$projectID}" : ($this->post->productName ? $this->post->productName : $project->name);
                 $product->shadow         = (int)empty($project->hasProduct);
                 $product->bind           = $this->post->parent ? 0 : 1;
                 $product->program        = $project->parent ? current(array_filter(explode(',', $program->path))) : 0;