diff --git a/markitect/document_manager.py b/markitect/document_manager.py
index f9929244..1a80749c 100644
--- a/markitect/document_manager.py
+++ b/markitect/document_manager.py
@@ -560,7 +560,9 @@ class DocumentManager:
                 contentDiv.innerHTML = marked.parse(markdownContent);
             }} else {{
                 console.error('Failed to render markdown: marked library not loaded');
-                contentDiv.innerHTML = '<p>Error: Markdown parser not available</p>';
+                if (contentDiv) {{
+                    contentDiv.innerHTML = '<p>Error: Markdown parser not available</p>';
+                }}
             }}
             {'// Initialize editor if in edit mode' if edit_mode else ''}
             {'if (typeof MARKITECT_EDIT_MODE !== \'undefined\' && MARKITECT_EDIT_MODE) {' if edit_mode else ''}