diff --git a/server/server.js b/server/server.js
index 78c5789..83927db 100644
--- a/server/server.js
+++ b/server/server.js
@@ -51,6 +51,11 @@ app.use((req, res, next) => {
     csrf: req.session.csrf
   })
 
+  // Add Piwik tracker if configured
+  if (config.piwik && config.piwik.site_id) {
+    res.locals.piwik = config.piwik
+  }
+
   next()
 })
 
diff --git a/views/layout.pug b/views/layout.pug
index dd1e448..e2fb219 100644
--- a/views/layout.pug
+++ b/views/layout.pug
@@ -3,6 +3,19 @@ html
 	head
 		meta(charset="utf8")
 		meta(name="viewport", content="width=device-width, initial-scale=1")
+		if piwik
+			script(type="text/javascript").
+				var _paq = _paq || [];
+				  /* tracker methods like "setCustomDimension" should be called before "trackPageView" */
+				_paq.push(['trackPageView']);
+				_paq.push(['enableLinkTracking']);
+				(function() {
+					var u="#{piwik.track_url}";
+					_paq.push(['setTrackerUrl', u+'piwik.php']);
+					_paq.push(['setSiteId', '#{piwik.site_id}']);
+					var d=document, g=d.createElement('script'), s=d.getElementsByTagName('script')[0];
+					g.type='text/javascript'; g.async=true; g.defer=true; g.src=u+'piwik.js'; s.parentNode.insertBefore(g,s);
+				})();
 		block links
 			link(rel="stylesheet", type="text/css", href="/style/main.css")
 			link(rel="stylesheet", type="text/css", href="/style/footer.css")