diff --git a/theme/classic.html b/theme/classic.html
index c07a3d1..b04a3e4 100644
--- a/theme/classic.html
+++ b/theme/classic.html
@@ -19,6 +19,7 @@
     <meta charset=utf-8>
     <meta http-equiv=X-UA-Compatible content="IE=edge">
     <meta name=viewport content="width=device-width,initial-scale=1">
+    <meta name="referrer" content="no-referrer">
     <meta name="keywords" content="<!--Keywords-->">
     <meta name="description" content="<!--Description-->">
     <link rel="icon" href="<!--base_path-->favicon.ico" type="image/x-icon">