diff --git a/module/upgrade/control.php b/module/upgrade/control.php
index 1fd89770b0..c0c9c067b7 100644
--- a/module/upgrade/control.php
+++ b/module/upgrade/control.php
@@ -182,21 +182,16 @@ class upgrade extends control
         }
 
         $title = $this->lang->upgrade->toPMS15Guide;
-        if(isset($this->config->maxVersion))
+        if($this->config->edition == 'max')
         {
             $this->lang->upgrade->to15Desc = str_replace('15.0', $this->lang->maxName, $this->lang->upgrade->to15Desc);
             $title = $this->lang->upgrade->toMAXGuide;
         }
-        elseif(isset($this->config->bizVersion))
+        elseif($this->config->edition == 'biz')
         {
             $this->lang->upgrade->to15Desc = str_replace('15', $this->lang->bizName . '5', $this->lang->upgrade->to15Desc);
             $title = $this->lang->upgrade->toBIZ5Guide;
         }
-        elseif(isset($this->config->proVersion))
-        {
-            $this->lang->upgrade->to15Desc = str_replace('15', $this->lang->proName . '10', $this->lang->upgrade->to15Desc);
-            $title = $this->lang->upgrade->toPRO10Guide;
-        }
 
         $this->view->title = $title;
         $this->display();
diff --git a/module/upgrade/view/to15guide.html.php b/module/upgrade/view/to15guide.html.php
index 5ea91bcd42..528dd3b675 100644
--- a/module/upgrade/view/to15guide.html.php
+++ b/module/upgrade/view/to15guide.html.php
@@ -16,18 +16,14 @@
     <form method='post'>
       <div class='panel-title text-center'>
         <?php
-        if(isset($config->maxVersion))
+        if($this->config->edition == 'max')
         {
             echo $lang->upgrade->toMAXGuide;
         }
-        elseif(isset($config->bizVersion))
+        elseif($this->config->edition == 'biz')
         {
             echo $lang->upgrade->toBIZ5Guide;
         }
-        elseif(isset($config->proVersion))
-        {
-            echo $lang->upgrade->toPRO10Guide;
-        }
         else
         {
             echo $lang->upgrade->toPMS15Guide;