diff --git a/catalog/templates/catalog/base.html b/catalog/templates/catalog/base.html
index b5d050c9..08006b5c 100644
--- a/catalog/templates/catalog/base.html
+++ b/catalog/templates/catalog/base.html
@@ -23,7 +23,7 @@
     <meta name="ebi:review-cycle" content="30" /> <!-- In days, how often should the content be reviewed -->
     <meta name="ebi:last-review" content="2019-07-25" /> <!-- The last time the content was reviewed -->
     <meta name="ebi:expiry" content="2019-12-31" /> <!-- When this content is no longer relevant -->
-    {% if is_pgs_live_site is not True%}
+    {% if not is_pgs_live_site %}
       <!-- Prevent the indexing of the website -->
       <meta name="robots" content="noindex, nofollow" />
     {% endif %}