diff --git a/assets/images/two_spheres.jpg b/assets/images/two_spheres.jpg
new file mode 100644
index 00000000..ac202cf1
Binary files /dev/null and b/assets/images/two_spheres.jpg differ
diff --git a/index.html b/index.html
index 916642b6..5ced2080 100644
--- a/index.html
+++ b/index.html
@@ -18,7 +18,7 @@
 
 	<style type="text/css">
 		.hero-unit {
-			background: url(./assets/images/two_spheres.png) repeat 0 0;
+			background: url(./assets/images/two_spheres.jpg) repeat 0 0;
 			background-position: 0 70%, center;
 		}
 		.hero-unit h1 {
@@ -57,7 +57,7 @@
 				<div class="nav-collapse collapse">
 					<ul class="nav">
 						<li><a href="http://bolero-murakami.github.io/">Home</a></li>
-						<li class="active"><a href="#">Sprout C++ Libraries</a></li>
+						<li class="active"><a href="./index.html">Sprout C++ Libraries</a></li>
 						<li><a href="http://bolero-murakami.github.io/KTL/">KTL (KiriKiri Trivial Libraries)</a></li>
 					</ul>
 				</div>