diff --git a/grammar.js b/grammar.js
index faca9a3..e59df60 100644
--- a/grammar.js
+++ b/grammar.js
@@ -105,6 +105,7 @@ module.exports = grammar({
     end_tag: $ => seq(
       "</",
       alias($._end_tag_name, $.tag_name),
+      optional(choice($.attribute, $.directive_attribute)),
       ">",
     ),