Index: categories.php
===================================================================
--- categories.php	(revision 12298)
+++ categories.php	(working copy)
@@ -282,6 +282,7 @@
 	<textarea name="category_description" id="category_description" rows="5" cols="40"></textarea>
     <p><?php _e('The description is not prominent by default; however, some themes may show it.'); ?></p>
 </div>
+<?php do_action('add_category_form_fields', $category); ?>
 
 <p class="submit"><input type="submit" class="button" name="submit" value="<?php esc_attr_e('Add Category'); ?>" /></p>
 <?php do_action('edit_category_form', $category); ?>