diff --git a/_includes/foot.html b/_includes/foot.html
index 8dcd828..7168756 100644
--- a/_includes/foot.html
+++ b/_includes/foot.html
@@ -5,7 +5,7 @@
             SQL style guide
         </span> by
         <a xmlns:cc="http://creativecommons.org/ns#"
-           href="https://www.simonholywell.com/?utm_source={{ site.domain }}-sqlstyle.guide&amp;utm_medium=link&amp;utm_campaign=footer-licence"
+           href="https://www.simonholywell.com/?utm_source=sqlstyle.guide-{{ site.domain }}&amp;utm_medium=link&amp;utm_campaign=footer-licence"
            property="cc:attributionName"
            rel="cc:attributionURL">
             Simon Holywell