diff --git a/README.md b/README.md
index d2eff2f..e37d4fb 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,7 @@ the static website will be copied and `-config-file` is the path to the configur
 ```yaml
 title: "go-gallery"
 url: https://photos.example.org
+#cover_url: https://example.org/cover.png <- override the default cover
 bg_color: "#1b1c1d"
 font_color: "white"
 border: "3px"
diff --git a/config.yaml.example b/config.yaml.example
index c5563a7..bbedee9 100644
--- a/config.yaml.example
+++ b/config.yaml.example
@@ -1,5 +1,6 @@
 title: "go-gallery"
 url: https://photos.example.org
+#cover_url: https://example.org/cover.png <- override the default cover
 bg_color: "#1b1c1d"
 font_color: "white"
 border: "3px"
diff --git a/gallery.go b/gallery.go
index 2868599..e0aba3b 100644
--- a/gallery.go
+++ b/gallery.go
@@ -45,6 +45,7 @@ var (
 type config struct {
 	Title            string `yaml:"title"`
 	URL              string `yaml:"url"`
+	CoverURL         string `yaml:"cover_url"`
 	BgColor          string `yaml:"bg_color"`
 	FontColor        string `yaml:"font_color"`
 	Border           string `yaml:"border"`
diff --git a/res/index.html.tmpl b/res/index.html.tmpl
index 8dc2528..cb26241 100644
--- a/res/index.html.tmpl
+++ b/res/index.html.tmpl
@@ -14,9 +14,13 @@
 
     <meta property="og:title" content="{{ .Config.Title }}"/>
     <meta property="og:type" content="website"/>
-    <!-- TODO: allow to configure the website cover -->
-    <meta property="og:image"
-          content="{{ .Config.URL }}/{{ (index .Albums 0).Folder }}/{{ (index (index .Albums 0).Photos 0).ThumbnailPath }}"/>
+
+    {{ if .Config.CoverURL }}
+        <meta property="og:image" content="{{ .Config.CoverURL }}"/>
+    {{ else }}
+        <meta property="og:image"
+              content="{{ .Config.URL }}/{{ (index .Albums 0).Folder }}/{{ (index (index .Albums 0).Photos 0).ThumbnailPath }}"/>
+    {{ end }}
 </head>
 <body>
 <section id="albums">
