diff --git a/src/librustdoc/html/static/css/rustdoc.css b/src/librustdoc/html/static/css/rustdoc.css
index 6672093eb7bc6..699e77359a696 100644
--- a/src/librustdoc/html/static/css/rustdoc.css
+++ b/src/librustdoc/html/static/css/rustdoc.css
@@ -329,6 +329,7 @@ nav.sub {
 .logo-container > img {
 	max-width: 100px;
 	max-height: 100px;
+	height: 100%;
 	position: absolute;
 	left: 50%;
 	top: 50%;