       newFormElem = @template.clone().removeClass("empty-form")
 
       newForm = new $.fn.djangoFormset.Form(newFormElem, this)
-      newForm.initFormIndex(@totalForms.val())
+      newForm._initFormIndex(@totalForms.val())
       @totalForms.val(parseInt(@totalForms.val()) + 1)
 
       newFormElem.insertAfter(@insertAnchor)

      @totalForms.val(parseInt(@totalForms.val()) - 1)
      @forms.splice(index, 1)
      for form, i in @forms
        form.updateFormIndex(i)

      if @forms.length == 0
        @insertAnchor = @template

      )
      return

    _initFormIndex: (index) ->
      @_replaceFormIndex("__prefix__", index)
      return

    _updateFormIndex: (index) ->
      @_replaceFormIndex('\\d+', index)
      return

