diff --git a/layouts/partials/docs/html-head.html b/layouts/partials/docs/html-head.html
index a6e2949..39eee50 100644
--- a/layouts/partials/docs/html-head.html
+++ b/layouts/partials/docs/html-head.html
@@ -16,6 +16,7 @@
 {{- $manifest := resources.Get "manifest.json" | resources.ExecuteAsTemplate "manifest.json" . }}
 <link rel="manifest" href="{{ $manifest.RelPermalink }}">
 <link rel="icon" href="{{ .Site.Params.BookFavicon | default "favicon.png" | relURL }}" >
+<link rel="canonical" href="{{ .Permalink }}">
 
 {{- range .Translations }}
   <link rel="alternate" hreflang="{{ default .Language.Lang .Site.LanguageCode }}" href="{{ .Permalink }}" title="{{ partial "docs/title" . }}">