diff --git a/layouts/shortcodes/slide.html b/layouts/shortcodes/slide.html
index 352021d..7bb41ec 100644
--- a/layouts/shortcodes/slide.html
+++ b/layouts/shortcodes/slide.html
@@ -19,8 +19,12 @@
 <section data-noprocess data-shortcode-slide
   {{- $template := $params.Get "template" -}}
   {{- if $template -}}
-    {{- $templateParams := slice $.Site.Params.reveal_hugo.templates ($.Site.GetPage $.Page.Section).Params.reveal_hugo.templates $.Page.Params.reveal_hugo.templates -}}
-    {{- range $templateParams -}}
+    {{- $scratch.Add "templateParams" (slice $.Site.Params.reveal_hugo.templates) -}}
+    {{- if ne $.Page.File.LogicalName "_index.md" -}}
+      {{- $scratch.Add "templateParams" (slice ($.Site.GetPage $.Page.Section).Params.reveal_hugo.templates) -}}
+    {{- end -}}
+    {{- $scratch.Add "templateParams" (slice $.Page.Params.reveal_hugo.templates) -}}
+    {{- range ($scratch.Get "templateParams") -}}
       {{- if (ne . nil) -}}
         {{- range $key, $value := (index . $template) -}}
           {{- $scratch.SetInMap "template" $key $value | safeHTMLAttr -}}