diff --git a/public/index.html b/public/index.html
index 5c56d1d..c71db5c 100644
--- a/public/index.html
+++ b/public/index.html
@@ -15,6 +15,7 @@
     <meta property="og:image:width" content="512" />
     <meta property="og:image:height" content="512" />
     <meta property="og:image:alt" content="A calendar icon that displays the date 18 Brumaire." />
+    <link rel="canonical" href="%PUBLIC_URL%/"/>
     <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png"/>
     <link rel="manifest" href="%PUBLIC_URL%/manifest.json"/>
     <title>French Republican Calendar (a.k.a. French Revolutionary Calendar)</title>