diff --git a/lib/parse-tag.js b/lib/parse-tag.js
index 15b79b5..5899e39 100644
--- a/lib/parse-tag.js
+++ b/lib/parse-tag.js
@@ -40,5 +40,9 @@ module.exports = function (tag) {
         expectingValueAfterEquals = false;
     });
 
+    if(key) {
+        res.attrs[key] = key; // fixed last boolean attribute missed
+    }
+
     return res;
 };