[TYPO3] Marking required mailform fields with * after the label

[Logi Huldar Gunnlaugsson]

Dear list,

I'm trying to add an asterisk (*) after label names of required form
fields using the default mailform. The result that I want is like this:

<label for="mailformName">Name<span class="field-req">*</span></label>

This is the TS I'm using:

###### TS Begin ####################################################

tt_content.mailform.20.layout = <div class="dFormItem">###LABEL###
###FIELD###</div>
tt_content.mailform.20.stdWrap.wrap = <div class="dMailform">|</div>

tt_content.mailform.20.REQ = 1
tt_content.mailform.20.REQ.labelWrap.wrap = |<span
class="field-req">*</span>

###### TS End ####################################################

The result is the following and is not what I want:

<label for="mailformName">Name</label><span class="field-req">*</span>


I have also tried this TS but the result is the same:

###### TS Begin ####################################################

tt_content.mailform.20.REQ.layout = <div
class="dFormItem">###LABEL###<span class="field-req">*</span>
###FIELD###</div>

###### TS End ####################################################

Any idea what I'm missing?

Cheers,
Logi