diff --git a/layouts/index.html b/layouts/index.html
index b035676..7d3c22c 100644
--- a/layouts/index.html
+++ b/layouts/index.html
@@ -3,7 +3,7 @@
     {{ $pages := .Resources.ByType "page" }}
     {{ range sort $pages "Params.weight" }}
       <div class="bg{{if isset .Params "bg_colored" }} colored{{end}}">
-        {{ with .File }}<p id="ancre_{{ .BaseFileName }}" class="ancre" />{{ end }}
+        {{ with .File }}<p id="_{{ .BaseFileName }}" class="ancre" />{{ end }}
         <div class="container">
           {{ .Content }}
         </div>
diff --git a/layouts/partials/header.html b/layouts/partials/header.html
index 09d0176..c89bad1 100644
--- a/layouts/partials/header.html
+++ b/layouts/partials/header.html
@@ -10,7 +10,7 @@
           {{ range sort $pages "Params.weight" }}
           {{ if .Title }}
             <li>
-              <a class="navigation-lien" href="#ancre_{{ .File.BaseFileName }}">{{ .Title }}</a>
+              <a class="navigation-lien" href="#_{{ .File.BaseFileName }}">{{ .Title }}</a>
             </li>
           {{ end }}
           {{ end }}