diff --git a/module/backup/control.php b/module/backup/control.php
index d3fb75f8a4..67d58a26db 100644
--- a/module/backup/control.php
+++ b/module/backup/control.php
@@ -30,6 +30,7 @@ class backup extends control
         {
             if(!is_writable($this->backupPath)) $this->view->error = sprintf($this->lang->backup->error->noWritable, $this->backupPath);
         }
+        if(!is_writable($this->app->getTmpRoot())) $this->view->error = sprintf($this->lang->backup->error->noWritable, $this->app->getTmpRoot());
     }
 
     /**
diff --git a/module/backup/model.php b/module/backup/model.php
index b42b44a75e..9cabd4e649 100644
--- a/module/backup/model.php
+++ b/module/backup/model.php
@@ -283,7 +283,8 @@ class backupModel extends model
      */
     public function getBackupPath()
     {
-        return empty($this->config->backup->settingDir) ? $this->app->getTmpRoot() . 'backup' . DS : $this->config->backup->settingDir;
+        $backupPath = empty($this->config->backup->settingDir) ? $this->app->getTmpRoot() . 'backup' . DS : $this->config->backup->settingDir;
+        return trim(str_replace('\\', '/', $backupPath), '/') . '/';
     }
 
     /**