diff --git a/_static/theme/theme_overrides.css b/_static/theme/theme_overrides.css
index 1a3308d3..8add16dd 100644
--- a/_static/theme/theme_overrides.css
+++ b/_static/theme/theme_overrides.css
@@ -92,3 +92,8 @@ article ul li ul {
 .wy-menu-vertical li.current a {
     color: #404040;
 }
+
+.wy-side-nav-search > a img.logo {
+    width: 70px;
+    height: 61px;
+}
diff --git a/conf.py b/conf.py
index 468d9671..a1f17c78 100644
--- a/conf.py
+++ b/conf.py
@@ -4,9 +4,9 @@
 
 import sphinx_rtd_theme
 
-html_logo = "images/zammad_logo_70x61.png"
+html_logo = "images/zammad_logo_70x61@2x.png"
 html_favicon = "images/favicon.ico"
-project = u'Zammad'
+project = u'Zammad System Documentation'
 copyright = u'%s, Zammad' % time.strftime("%Y")
 author = u'Zammad'
 
diff --git a/images/zammad_logo_600x520.png b/images/zammad_logo_600x520.png
index c8861f34..7beb7b49 100644
Binary files a/images/zammad_logo_600x520.png and b/images/zammad_logo_600x520.png differ
diff --git a/images/zammad_logo_70x61.png b/images/zammad_logo_70x61.png
index b1353058..7d0a92b6 100644
Binary files a/images/zammad_logo_70x61.png and b/images/zammad_logo_70x61.png differ
diff --git a/images/zammad_logo_70x61@2x.png b/images/zammad_logo_70x61@2x.png
new file mode 100644
index 00000000..67dc1d26
Binary files /dev/null and b/images/zammad_logo_70x61@2x.png differ