diff --git a/layouts/partials/footer.html b/layouts/partials/footer.html
index c7d0f3a..c375341 100644
--- a/layouts/partials/footer.html
+++ b/layouts/partials/footer.html
@@ -5,7 +5,7 @@
   using the <a href="https://github.com/koirand/pulp/">pulp</a> theme.
   </p>
 </footer>
-{{ if .Params.mathjax }}
+{{ if .Params.math }}
     {{ partial "mathjax_support.html" . }}
 {{ end }}
 {{- range .Site.Params.custom_js -}}