diff --git a/layouts/_default/single.html b/layouts/_default/single.html
index 54f10ae..9bc6709 100644
--- a/layouts/_default/single.html
+++ b/layouts/_default/single.html
@@ -29,7 +29,7 @@
                 </section>
             </footer>
 
-            {{ if gt (len .Site.Params.disqusShortname) 0 }}
+            {{ if isset .Site.Params "disqusShortname" }}
                 {{ partial "disqus.html" . }}
             {{ end }}