diff --git a/public/sitemap.xml b/public/sitemap.xml
index 47345cd..e6c5115 100644
--- a/public/sitemap.xml
+++ b/public/sitemap.xml
@@ -1,5 +1,4 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
   <url>
     <loc>https://physicshub.github.io/</loc>
diff --git a/scripts/sitemap-generator.js b/scripts/sitemap-generator.js
index 8ae7762..ce435cc 100644
--- a/scripts/sitemap-generator.js
+++ b/scripts/sitemap-generator.js
@@ -81,7 +81,7 @@ async function generateSitemap() {
     lineSeparator: "\n",
   });
 
-  const xmlOutput = `<?xml version="1.0" encoding="UTF-8"?>\n${formatted}`;
+  const xmlOutput = formatted;
 
   // Ensure public directory exists
   const publicDir = join(__dirname, "../public");
diff --git a/tsconfig.json b/tsconfig.json
index 012ebf4..1045bf8 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -11,7 +11,7 @@
     "moduleResolution": "bundler",
     "resolveJsonModule": true,
     "isolatedModules": true,
-    "jsx": "react-jsx",
+    "jsx": "preserve",
     "incremental": true,
     "allowImportingTsExtensions": true,
     "plugins": [