diff --git a/assets/js/theme.js b/assets/js/theme.js
index 3ddc6cb6..ce1a3e9b 100644
--- a/assets/js/theme.js
+++ b/assets/js/theme.js
@@ -381,8 +381,12 @@ class FixIt {
       $preChroma.parentElement.replaceChild($chroma, $preChroma);
       $td.appendChild($preChroma);
     });
+    // render code header
     this.util.forEach(document.querySelectorAll('.highlight > .chroma:not([data-init])'), ($chroma) => {
       $chroma.dataset.init = 'true';
+      if ($chroma.parentElement.classList.contains('no-header')) {
+        return;
+      }
       const $codeElements = $chroma.querySelectorAll('pre.chroma > code');
       if ($codeElements.length) {
         const $code = $codeElements[$codeElements.length - 1];