diff --git a/extension/Classes/Core/Helper/OnArray.php b/extension/Classes/Core/Helper/OnArray.php
index 9191ff6b8b4f82012b67fdd4c4a9d4201ff7856d..1625ffdd0fb9e95c1682fcd3dbda0be349abf237 100644
--- a/extension/Classes/Core/Helper/OnArray.php
+++ b/extension/Classes/Core/Helper/OnArray.php
@@ -138,7 +138,9 @@ class OnArray {
      */
     public static function htmlentitiesOnArray(array $arr) {
         foreach ($arr as $key => $value) {
-            $arr[$key] = htmlentities($arr[$key], ENT_QUOTES);
+
+            // Error message stays the same
+            if ($key !== EXCEPTION_MESSAGE) $arr[$key] = htmlentities($arr[$key], ENT_QUOTES);
         }
 
         return $arr;