diff --git a/layouts/_default/single.html b/layouts/_default/single.html
index 735bbf7c..b019a591 100644
--- a/layouts/_default/single.html
+++ b/layouts/_default/single.html
@@ -5,7 +5,7 @@ <h1>{{ .Title }}</h1>
   {{ .Content }}
 </div>
 
-{{ if .Site.DisqusShortname -}}
+{{ if .Site.Config.Services.Disqus.Shortname -}}
 <h2>Comments</h2>
 {{ template "_internal/disqus.html" . }}
 {{- end }}