diff --git a/README.md b/README.md
index a28a1da..5badcf6 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ This repository contains the source code of
 a static website for reading (and listening to)
 The Noble Quran. After the website is built,
 the build directory consists of HTML, CSS, JavaScript
-and other static assets that can be hosted by 
+and other static assets that can be hosted by
 a web server such as nginx, apache, etc.
 
 ## Requirements
diff --git a/nanoc/lib/mixin/opengraph.rb b/nanoc/lib/mixin/opengraph.rb
index 44ccf3b..bf66a45 100644
--- a/nanoc/lib/mixin/opengraph.rb
+++ b/nanoc/lib/mixin/opengraph.rb
@@ -11,13 +11,13 @@ module Mixin::OpenGraph
       surah = context.surah
       {title: t(context.locale, "TheNobleQuran"),
        description: surah.name,
-       url: "https://al-quran.reflectslight.io/#{context.locale}/#{surah.slug}/",
-       image: "https://al-quran.reflectslight.io/images/og/#{surah.id}.png"}
+       url: "https://<%= hostname %>/#{context.locale}/#{surah.slug}/",
+       image: "https://<%= hostname %>/images/og/#{surah.id}.png"}
     when "redirect.html.erb", "surah-index.html.erb"
       {title: t(context.locale, "TheNobleQuran"),
        description: t(context.locale, "meta.index.description"),
-       url: "https://al-quran.reflectslight.io/#{context.locale}/",
-       image: "https://al-quran.reflectslight.io/images/og/0.png"}
+       url: "https://<%= hostname %>/#{context.locale}/",
+       image: "https://<%= hostname %>/images/og/0.png"}
     end
   end
 end