diff --git a/layouts/_partials/lsmenu.html b/layouts/_partials/lsmenu.html
index 793c4c2..0573cf8 100644
--- a/layouts/_partials/lsmenu.html
+++ b/layouts/_partials/lsmenu.html
@@ -5,26 +5,14 @@
     {{/* . et .. sont comptés dans le calcul. */}}
     {{ $sum := add 4096 4096 }}
     {{ range .Pages }}
-      {{ if .IsNode }}
         {{/* Un nœud c'est 4096 octets. */}}
-        {{ $sum = add $sum 4096 }}
-      {{ else }}
-        {{ $sum = add $sum .Len }}
-      {{ end }}
+        {{ $sum = add $sum (cond .IsNode 4096 .Len) }}
     {{ end }}
     {{/* La commande ls affiche total en Kio. */}}
     <p aria-hidden="true">total {{ math.Floor (div $sum 1024) }}</p>
     <ul class="lsresult">
-      <li>
-        {{ partial "lsline.html" (dict "page" . "linkTitle" ".") }}
-      </li>
-      <li>
-        {{ if .Parent }}
-          {{ partial "lsline.html" (dict "page" .Parent "linkTitle" "..") }}
-        {{ else }}
-          {{ partial "lsline.html" (dict "page" . "linkTitle" "..") }}
-        {{ end }}
-      </li>
+      <li>{{ partial "lsline.html" (dict "page" . "linkTitle" ".") }}</li>
+      <li>{{ partial "lsline.html" (dict "page" (or .Parent .) "linkTitle" "..") }}</li>
       {{ range .Sections.ByLastmod.Reverse }}
         <li>
           {{ partial "lsline.html" (dict "page" . "linkTitle" .LinkTitle) }}