diff --git a/module/program/control.php b/module/program/control.php
index 4667806757..e80d6ae142 100644
--- a/module/program/control.php
+++ b/module/program/control.php
@@ -1375,6 +1375,11 @@ class program extends control
 
         if(!empty($_POST))
         {
+            if(!isset($_POST['products']))
+            {
+                die(js::alert($this->lang->program->errorNoProducts) . js::locate(inlink('PRJManageProducts', "projectID=$projectID&programID=$programID&from=$from")));
+            }
+
             $oldProducts = $this->project->getProducts($projectID);
             $this->project->updateProducts($projectID);
             if(dao::isError()) die(js::error(dao::getError()));
diff --git a/module/program/lang/de.php b/module/program/lang/de.php
index 30831aafac..9e9920cc53 100644
--- a/module/program/lang/de.php
+++ b/module/program/lang/de.php
@@ -33,6 +33,7 @@ $lang->program->unbindWhielist       = 'Project Remove Whitelist';
 $lang->program->PRJManageProducts    = 'Manage Products';
 $lang->program->copyTitle            = 'Please select an project to copy';
 $lang->program->errorSameProducts    = 'Project cannot be associated with multiple identical products.';
+$lang->program->errorNoProducts      = 'At least one product is linked with the project.';
 $lang->program->copyNoProject        = 'There are no items available to copy.';
 $lang->program->PRJSource            = 'Project source：';
 $lang->program->PRJStandalone        = 'Standalone Projects';
diff --git a/module/program/lang/en.php b/module/program/lang/en.php
index 30831aafac..9e9920cc53 100644
--- a/module/program/lang/en.php
+++ b/module/program/lang/en.php
@@ -33,6 +33,7 @@ $lang->program->unbindWhielist       = 'Project Remove Whitelist';
 $lang->program->PRJManageProducts    = 'Manage Products';
 $lang->program->copyTitle            = 'Please select an project to copy';
 $lang->program->errorSameProducts    = 'Project cannot be associated with multiple identical products.';
+$lang->program->errorNoProducts      = 'At least one product is linked with the project.';
 $lang->program->copyNoProject        = 'There are no items available to copy.';
 $lang->program->PRJSource            = 'Project source：';
 $lang->program->PRJStandalone        = 'Standalone Projects';
diff --git a/module/program/lang/fr.php b/module/program/lang/fr.php
index 30831aafac..9e9920cc53 100644
--- a/module/program/lang/fr.php
+++ b/module/program/lang/fr.php
@@ -33,6 +33,7 @@ $lang->program->unbindWhielist       = 'Project Remove Whitelist';
 $lang->program->PRJManageProducts    = 'Manage Products';
 $lang->program->copyTitle            = 'Please select an project to copy';
 $lang->program->errorSameProducts    = 'Project cannot be associated with multiple identical products.';
+$lang->program->errorNoProducts      = 'At least one product is linked with the project.';
 $lang->program->copyNoProject        = 'There are no items available to copy.';
 $lang->program->PRJSource            = 'Project source：';
 $lang->program->PRJStandalone        = 'Standalone Projects';
diff --git a/module/program/lang/vi.php b/module/program/lang/vi.php
index 30831aafac..9e9920cc53 100644
--- a/module/program/lang/vi.php
+++ b/module/program/lang/vi.php
@@ -33,6 +33,7 @@ $lang->program->unbindWhielist       = 'Project Remove Whitelist';
 $lang->program->PRJManageProducts    = 'Manage Products';
 $lang->program->copyTitle            = 'Please select an project to copy';
 $lang->program->errorSameProducts    = 'Project cannot be associated with multiple identical products.';
+$lang->program->errorNoProducts      = 'At least one product is linked with the project.';
 $lang->program->copyNoProject        = 'There are no items available to copy.';
 $lang->program->PRJSource            = 'Project source：';
 $lang->program->PRJStandalone        = 'Standalone Projects';
diff --git a/module/program/lang/zh-cn.php b/module/program/lang/zh-cn.php
index ab74ebd951..2c8de4c9c7 100644
--- a/module/program/lang/zh-cn.php
+++ b/module/program/lang/zh-cn.php
@@ -33,6 +33,7 @@ $lang->program->unbindWhielist       = '项目删除白名单';
 $lang->program->PRJManageProducts    = '关联产品';
 $lang->program->copyTitle            = '请选择一个项目来复制';
 $lang->program->errorSameProducts    = '项目不能关联多个相同的产品。';
+$lang->program->errorNoProducts      = '项目最少关联一个产品。';
 $lang->program->copyNoProject        = '没有可用的项目来复制';
 $lang->program->PRJSource            = '项目来源：';
 $lang->program->PRJStandalone        = '独立项目';