diff --git a/assets/js/code-title.js b/assets/js/code-title.js
index 3449e48a5..698edc9b6 100644
--- a/assets/js/code-title.js
+++ b/assets/js/code-title.js
@@ -4,6 +4,7 @@ function addTitleToCodeBlocks() {
   for (var i = 0; i < els.length; i++) {
     if (els[i].title.length) {
       let div = document.createElement("div");
+      if (els[i].getElementsByClassName("code-title").length) continue;
       div.textContent=els[i].title;
       div.classList.add("code-title")
       els[i].insertBefore(div, els[i].firstChild);