diff --git a/index.html b/index.html
index 08a78ef..036f86c 100644
--- a/index.html
+++ b/index.html
@@ -2,8 +2,9 @@
 <html lang="en">
 <head>
   <meta charset="utf-8">
-  <title>wordcloud2.js - tag cloud/Wordle presentation on 2D canvas or HTML</title>
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <link rel="canonical" href="https://wordcloud2-js.timdream.org/" />
+  <title>wordcloud2.js - tag cloud/Wordle presentation on 2D canvas or HTML</title>
   <meta name="description" content="">
   <meta name="author" content="">
   <!-- Le styles -->
