diff --git a/db/update16.2.sql b/db/update16.2.sql
new file mode 100644
index 0000000000..129e637289
--- /dev/null
+++ b/db/update16.2.sql
@@ -0,0 +1,2 @@
+ALTER TABLE `zt_kanbanspace` ADD `type` varchar(50) NOT NULL AFTER `name`;
+UPDATE `zt_kanbanspace` SET `type` = 'cooperation';
diff --git a/db/zentao.sql b/db/zentao.sql
index 6d76a6175f..96d30fa663 100644
--- a/db/zentao.sql
+++ b/db/zentao.sql
@@ -648,6 +648,7 @@ CREATE TABLE IF NOT EXISTS `zt_job` (
 CREATE TABLE `zt_kanbanspace` (
   `id` mediumint(8) unsigned NOT NULL AUTO_INCREMENT,
   `name` varchar(255) NOT NULL,
+  `type` varchar(50) NOT NULL,
   `owner` varchar(30) NOT NULL,
   `team` text NOT NULL,
   `desc` text NOT NULL,
diff --git a/module/execution/model.php b/module/execution/model.php
index 69cc47c87b..dc5a6dd30b 100644
--- a/module/execution/model.php
+++ b/module/execution/model.php
@@ -302,13 +302,14 @@ class executionModel extends model
             if($project) $type = zget($this->config->execution->modelList, $project->model, 'sprint');
 
             /* If the execution model is a stage, determine whether the product is linked. */
-            if($type == 'stage' and empty(array_filter($this->post->products)))
+            $products = array_filter($this->post->products);
+            if($type == 'stage' and empty($products))
             {
                 dao::$errors['message'][] = $this->lang->execution->noLinkProduct;
                 return false;
             }
 
-            if($type == 'kanban' and empty(array_filter($this->post->products)))
+            if($type == 'kanban' and empty($products))
             {
                 dao::$errors['message'][] = $this->lang->execution->kanbanNoLinkProduct;
                 return false;
@@ -470,13 +471,14 @@ class executionModel extends model
             return false;
         }
 
-        if($oldExecution->type == 'stage' and empty(array_filter($this->post->products)))
+        $products = array_filter($this->post->products);
+        if($oldExecution->type == 'stage' and empty($products))
         {
             dao::$errors['message'][] = $this->lang->execution->noLinkProduct;
             return false;
         }
 
-        if($oldExecution->type == 'kanban' and empty(array_filter($this->post->products)))
+        if($oldExecution->type == 'kanban' and empty($products))
         {
             dao::$errors['message'][] = $this->lang->execution->kanbanNoLinkProduct;
             return false;