diff --git a/htdocs/core/tpl/admin_extrafields_add.tpl.php b/htdocs/core/tpl/admin_extrafields_add.tpl.php
index 37ca5e1ec10..e695c7aa95f 100644
--- a/htdocs/core/tpl/admin_extrafields_add.tpl.php
+++ b/htdocs/core/tpl/admin_extrafields_add.tpl.php
@@ -148,7 +148,7 @@ $langs->load("modulebuilder");
 <!-- Label -->
 <tr><td class="titlefield fieldrequired"><?php echo $langs->trans("LabelOrTranslationKey"); ?></td><td class="valeur"><input type="text" name="label" size="40" value="<?php echo GETPOST('label', 'alpha'); ?>"></td></tr>
 <!-- Code -->
-<tr><td class="fieldrequired"><?php echo $langs->trans("AttributeCode"); ?></td><td class="valeur"><input type="text" name="attrname" id="attrname"  size="10" value="<?php echo GETPOST('attrname', 'alpha'); ?>"> (<?php echo $langs->trans("AlphaNumOnlyLowerCharsAndNoSpace"); ?>)</td></tr>
+<tr><td class="fieldrequired"><?php echo $langs->trans("AttributeCode"); ?></td><td class="valeur"><input type="text" name="attrname" id="attrname"  size="10" value="<?php echo GETPOST('attrname', 'alpha'); ?>"> <span class="opacitymedium">(<?php echo $langs->trans("AlphaNumOnlyLowerCharsAndNoSpace"); ?>)</span></td></tr>
 <!-- Type -->
 <tr><td class="fieldrequired"><?php echo $langs->trans("Type"); ?></td><td class="valeur">
 <?php print $form->selectarray('type', $type2label, GETPOST('type', 'alpha')); ?>