diff --git a/apps/theming/js/settings-admin.js b/apps/theming/js/settings-admin.js
index 85e781411e..941ec5c711 100644
--- a/apps/theming/js/settings-admin.js
+++ b/apps/theming/js/settings-admin.js
@@ -75,11 +75,11 @@ function preview(setting, value) {
 		var logos = document.getElementsByClassName('logo-icon');
 		var timestamp = new Date().getTime();
 		if (value !== '') {
-			logos[0].style.background = "url('" + OC.generateUrl('/apps/theming/logo') + "?v" + timestamp + "')";
-			logos[0].style.backgroundSize = "62px 34px";
+			logos[0].style.backgroundImage = "url('" + OC.generateUrl('/apps/theming/logo') + "?v" + timestamp + "')";
+			logos[0].style.backgroundSize = "contain";
 		} else {
-			logos[0].style.background = "url('" + OC.getRootPath() + '/core/img/logo-icon.svg?v' + timestamp +"')";
-			logos[0].style.backgroundSize = "62px 34px";
+			logos[0].style.backgroundImage = "url('" + OC.getRootPath() + '/core/img/logo-icon.svg?v' + timestamp +"')";
+			logos[0].style.backgroundSize = "contain";
 		}
 	}
 }
diff --git a/core/css/header.css b/core/css/header.css
index cf7c981955..6078008f91 100644
--- a/core/css/header.css
+++ b/core/css/header.css
@@ -82,6 +82,7 @@
 	display: inline-block;
 	background-image: url('../img/logo-icon.svg');
 	background-repeat: no-repeat;
+	background-position: center center;
 	width: 62px;
 	height: 34px;
 }