diff --git a/src/uncloseai-embed-modal.js b/src/uncloseai-embed-modal.js
index 28269df..ad930f6 100644
--- a/src/uncloseai-embed-modal.js
+++ b/src/uncloseai-embed-modal.js
@@ -1484,6 +1484,12 @@ You have complete knowledge of this page content and can reference any details,
 						const aiMsg = document.createElement("div");
 						aiMsg.className = "ai-message";
 						aiMsg.innerHTML = marked.parse(msg.content);
+						
+						// Add syntax highlighting to all code blocks
+						aiMsg.querySelectorAll("pre code").forEach((block) => {
+							hljs.highlightElement(block);
+						});
+						
 						addCodeBlockCopyButtons(aiMsg);
 
 						// Add TTS and delete buttons to historical AI messages