diff --git a/docs/overrides/main.html b/docs/overrides/main.html
index abc170927..a22023f94 100644
--- a/docs/overrides/main.html
+++ b/docs/overrides/main.html
@@ -10,7 +10,7 @@
 {% endif %}
 
 <!-- The image needs to have an absolute URL -->
-{% set image = config.site_url ~ 'branding/android-chrome-512x512.png' %}
+{% set image = config.site_url ~ '/branding/android-chrome-512x512.png' %}
 
 <!-- Open graph meta tags -->
 <meta property="og:type" content="website" />
@@ -19,8 +19,8 @@
 <meta property="og:url" content="{{ page.canonical_url }}" />
 <meta property="og:image" content="{{ image }}" />
 <meta property="og:image:type" content="image/png" />
-<meta property="og:image:width" content="1200" />
-<meta property="og:image:height" content="630" />
+<meta property="og:image:width" content="512" />
+<meta property="og:image:height" content="512" />
 
 <!-- Twitter meta tags -->
 <meta name="twitter:card" content="summary_large_image" />