diff --git a/lib/parse.js b/lib/parse.js
index be23413e..8a8e86b7 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -114,7 +114,7 @@ module.exports = warner(class Parser extends EE {
     this[SAW_NULL_BLOCK] = false
     this[SAW_EOF] = false
 
-    this.on('end', () => setTimeout(() => this.emit('close')))
+    this.on('end', () => queueMicrotask(() => this.emit('close')))
 
     if (typeof opt.onwarn === 'function') {
       this.on('warn', opt.onwarn)