diff --git a/lib/md033.js b/lib/md033.js
index e138e512..6d0a2e0e 100644
--- a/lib/md033.js
+++ b/lib/md033.js
@@ -6,7 +6,7 @@ const { addError, bareUrlRe, forEachLine, unescapeMarkdown } =
   require("../helpers");
 const { lineMetadata } = require("./cache");
 
-const htmlElementRe = /<(([A-Za-z][A-Za-z0-9-]*)(?:\s[^>]*)?)(?:\/>|>)/g;
+const htmlElementRe = /<(([A-Za-z][A-Za-z0-9-]*)(?:\s[^>]*)?)\/?>/g;
 const linkDestinationRe = /]\(\s*$/;
 const inlineCodeRe = /^[^`]*(`+[^`]+`+[^`]+)*`+[^`]*$/;
 // See https://spec.commonmark.org/0.29/#autolinks