diff --git a/index.html b/index.html
index c251c0291..f440748d4 100644
--- a/index.html
+++ b/index.html
@@ -92,7 +92,7 @@ <h2>Test suite status</h2>
 <p>Linkchecker has extensive unit tests to ensure code quality.
 <a href="https://travis-ci.org/">Travis CI</a> is used for continuous build
 and test integration.</p>
-<p><a href="https://travis-ci.org/wummel/linkchecker"><img alt="Build Status" src="https://travis-ci.org/wummel/linkchecker.png" /></a></p>
+<p><a href="https://travis-ci.org/wummel/linkchecker"><img alt="Build Status" src="https://travis-ci.org/wummel/linkchecker.svg" /></a></p>
 </section>
 
 <aside id="sidebar">