diff --git a/src/Control/HTTPResponse.php b/src/Control/HTTPResponse.php
index d16ef1e99fa..f75b4a8884f 100644
--- a/src/Control/HTTPResponse.php
+++ b/src/Control/HTTPResponse.php
@@ -117,7 +117,7 @@ class HTTPResponse
      * @var array
      */
     protected $headers = [
-        "content-type" => "text/html; charset=utf-8",
+        "charset" => "utf-8",
     ];
 
     /**
diff --git a/src/View/Parsers/HTMLValue.php b/src/View/Parsers/HTMLValue.php
index f7accf29542..189779bc0df 100644
--- a/src/View/Parsers/HTMLValue.php
+++ b/src/View/Parsers/HTMLValue.php
@@ -35,7 +35,7 @@ public function setContent($content)
         $content = preg_replace('#</?(html|head(?!er)|body)[^>]*>#si', '', $content);
         $html5 = new HTML5(['disable_html_ns' => true]);
         $document = $html5->loadHTML(
-            '<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head>' .
+            '<html><head><meta charset="utf-8"></head>' .
             "<body>$content</body></html>"
         );
         if ($document) {
diff --git a/templates/BlankPage.ss b/templates/BlankPage.ss
index 84d06519273..d9e6dbf55aa 100644
--- a/templates/BlankPage.ss
+++ b/templates/BlankPage.ss
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html>
 <head>
-<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
+<meta charset="utf-8">
 <title>$Title</title>
 <% base_tag %>
 </head>
