diff --git a/core/templates/layout.base.php b/core/templates/layout.base.php
index 7895e624507..127e99be84d 100644
--- a/core/templates/layout.base.php
+++ b/core/templates/layout.base.php
@@ -12,7 +12,7 @@
 		</title>
 		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 		<meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0">
-		<link rel="shortcut icon" href="<?php print_unescaped(image_path('', 'favicon.png')); ?>" />
+		<link rel="shortcut icon" type="image/png" href="<?php print_unescaped(image_path('', 'favicon.png')); ?>" />
 		<link rel="apple-touch-icon-precomposed" href="<?php print_unescaped(image_path('', 'favicon-touch.png')); ?>" />
 		<?php foreach ($_['cssfiles'] as $cssfile): ?>
 			<link rel="stylesheet" href="<?php print_unescaped($cssfile); ?>" type="text/css" media="screen" />
diff --git a/core/templates/layout.guest.php b/core/templates/layout.guest.php
index a2d386e86d4..00950802fec 100644
--- a/core/templates/layout.guest.php
+++ b/core/templates/layout.guest.php
@@ -13,7 +13,7 @@
 		<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
 		<meta name="viewport" content="width=device-width, minimum-scale=1.0, maximum-scale=1.0">
 		<meta name="apple-itunes-app" content="app-id=543672169">
-		<link rel="shortcut icon" href="<?php print_unescaped(image_path('', 'favicon.png')); ?>" />
+		<link rel="shortcut icon" type="image/png" href="<?php print_unescaped(image_path('', 'favicon.png')); ?>" />
 		<link rel="apple-touch-icon-precomposed" href="<?php print_unescaped(image_path('', 'favicon-touch.png')); ?>" />
 		<?php foreach($_['cssfiles'] as $cssfile): ?>
 			<link rel="stylesheet" href="<?php print_unescaped($cssfile); ?>" type="text/css" media="screen" />
diff --git a/core/templates/layout.user.php b/core/templates/layout.user.php
index e91c427d65b..69a181735ca 100644
--- a/core/templates/layout.user.php
+++ b/core/templates/layout.user.php
@@ -21,7 +21,7 @@
 		<meta name="apple-mobile-web-app-status-bar-style" content="black">
 		<meta name="apple-mobile-web-app-title" content="<?php p((!empty($_['application']) && $_['appid']!='files')? $_['application']:'ownCloud'); ?>">
 		<meta name="mobile-web-app-capable" content="yes">
-		<link rel="shortcut icon" href="<?php print_unescaped(image_path('', 'favicon.png')); ?>" />
+		<link rel="shortcut icon" type="image/png" href="<?php print_unescaped(image_path('', 'favicon.png')); ?>" />
 		<link rel="apple-touch-icon-precomposed" href="<?php print_unescaped(image_path('', 'favicon-touch.png')); ?>" />
 		<?php foreach($_['cssfiles'] as $cssfile): ?>
 			<link rel="stylesheet" href="<?php print_unescaped($cssfile); ?>" type="text/css" media="screen" />