*Really* fix the missing contact mail issue

services/consulting.html

@@ -112,7 +112,7 @@ excerpt: >-
 <p>
     You can request a new consultation by using the link below.
     Alternatively, if you want to discuss using other services that the HIFIS team offers, feel free to email
-    <a href="mailto:{{site.contact_mail}}">{{contact_mail}}</a>
+    <a href="mailto:{{site.contact_mail}}">{{site.contact_mail}}</a>
     directly.
 </p>