Zend: Custom Decorators For Label Tag

[supamodz]

I currently have the following code to generate a form element (text box):\[code\]$this->addElement('text', 'username', array( 'label' => 'Username', //'multiOptions' => $this->getOptions(), 'filters' => array( 'StringTrim', ), 'validators' => array( array('StringLength', false, array(0, 50)), ), 'decorators' => array( array('ViewHelper'), array('Label', array( 'tag' => 'label', 'placement' => 'prepend', ) ), array('HtmlTag', array( 'tag' => 'input', ) ), ), ));\[/code\]This outputs the following in HTML:\[code\]<dt id="username-label"><label for="username" class="optional">Username</label></dt><dd id="username-element"><input type="text" name="username" id="username" value="" class="input"></dd>\[/code\]However, I would expect it to output this:\[code\]<dt id="username-label"><label for="username" class="**label**">Username</label></dt><dd id="username-element"><input type="text" name="username" id="username" value="" class="input"></dd>\[/code\]Why is the label not taking on the label class even though I told it to use the label class in the decorator definition? Am I doing something wrong here?Thanks!