diff --git a/themes/hugo-theme-digikam/layouts/partials/carousel-buttons.html b/themes/hugo-theme-digikam/layouts/partials/carousel-buttons.html
index 87d97865a..1d1875856 100644
--- a/themes/hugo-theme-digikam/layouts/partials/carousel-buttons.html
+++ b/themes/hugo-theme-digikam/layouts/partials/carousel-buttons.html
@@ -1 +1 @@
-<button data-slide="{{ .idx }}"><span class="show-for-sr">{{ .data.txt }}</span></button>
+<button {{ if eq .idx 0}}class="is-active" {{end}}data-slide="{{ .idx }}"><span class="show-for-sr">{{ .data.txt }}</span></button>