diff --git a/src/server.js b/src/server.js
index c5968a34..1a434310 100644
--- a/src/server.js
+++ b/src/server.js
@@ -135,7 +135,9 @@ const rssRoutes = require('./routes/rss.routes');
 app.use('/', rssRoutes);
 
 // Static files
-app.use(express.static('public'));
+// extensions: ['html'] lets clean URLs (e.g. /whitepapers/eu-policy-brief) resolve
+// to the matching .html file. Without this, only the .html-suffixed URL works.
+app.use(express.static('public', { extensions: ['html'] }));
 
 // Health check endpoint (minimal, no sensitive data)
 app.get('/health', (req, res) => {