diff --git a/public/views/hedgedoc/head.ejs b/public/views/hedgedoc/head.ejs
index 446687953..419d5dcc7 100644
--- a/public/views/hedgedoc/head.ejs
+++ b/public/views/hedgedoc/head.ejs
@@ -7,7 +7,7 @@
 <%- include('../includes/favicon') %>
 <% for (var og in opengraph) { %>
 <% if (opengraph.hasOwnProperty(og) && opengraph[og].trim() !== '') { %>
-<meta property="og:<%- og %>" content="<%- opengraph[og] %>">
+<meta property="og:<%= og %>" content="<%= opengraph[og] %>">
 <% }} if (!opengraph.hasOwnProperty('image')) { %>
 <meta property="og:image" content="<%- serverURL %>/icons/android-chrome-512x512.png">
 <meta property="og:image:alt" content="HedgeDoc logo">