diff --git a/administrator/components/com_media/controllers/file.json.php b/administrator/components/com_media/controllers/file.json.php
index 4ee056f13f180..421ba787420a4 100644
--- a/administrator/components/com_media/controllers/file.json.php
+++ b/administrator/components/com_media/controllers/file.json.php
@@ -54,10 +54,10 @@ public function upload()
 		// Instantiate the media helper
 		$mediaHelper = new JHelperMedia;
 
-		if ($_SERVER['CONTENT_LENGTH'] > ($params->get('upload_maxsize', 0) * 1024 * 1024)
+		if (isset($_SERVER['CONTENT_LENGTH']) && ($_SERVER['CONTENT_LENGTH'] > ($params->get('upload_maxsize', 0) * 1024 * 1024)
 			|| $_SERVER['CONTENT_LENGTH'] > $mediaHelper->toBytes(ini_get('upload_max_filesize'))
 			|| $_SERVER['CONTENT_LENGTH'] > $mediaHelper->toBytes(ini_get('post_max_size'))
-			|| $_SERVER['CONTENT_LENGTH'] > $mediaHelper->toBytes(ini_get('memory_limit')))
+			|| $_SERVER['CONTENT_LENGTH'] > $mediaHelper->toBytes(ini_get('memory_limit'))))
 		{
 			$response = array(
 				'status'  => '0',