diff --git a/web/lib/MRBS/Form/Element.php b/web/lib/MRBS/Form/Element.php
index 964cfe113..8f042ac70 100644
--- a/web/lib/MRBS/Form/Element.php
+++ b/web/lib/MRBS/Form/Element.php
@@ -399,7 +399,7 @@ public function toHTML(bool $no_whitespace=false): string
       }
 
       $html .= " $key";
-      if (isset($value) && ($value !== true))
+      if ($value !== true)
       {
         // boolean attributes, eg 'required', don't need a value
         $html .= '="';