diff --git a/lib/classes/Markup.class.php b/lib/classes/Markup.class.php
index 0f5a5c87232191957beeea5ec696da3c350a838c..ea8385946acc72737e70974dc6cb51aeb7af14fd 100644
--- a/lib/classes/Markup.class.php
+++ b/lib/classes/Markup.class.php
@@ -347,6 +347,7 @@ class Markup
             'float',
             'border'
         ]);
+        $config->set('CSS.MaxImgLength', null);
 
         if ($autoformat) {
             $config->set('AutoFormat.Linkify', true);