diff --git a/files/templates/header.html b/files/templates/header.html
index eebac1c4e..0d29c152d 100644
--- a/files/templates/header.html
+++ b/files/templates/header.html
@@ -63,7 +63,7 @@
 			</a>
 			
 			{% if sub %}
-				<a id="sub-name" href="/h/{{sub}}" class="font-weight-bold ml-2 flex-grow-1 mt-1" {% if len(sub.name) >= 17 %}style="font-size:max(10px,1.2vw)"{% else %}style="font-size:max(10px,1.2vw)"{% endif %}>{% if not HOLE_STYLE_FLAIR %}/h/{% endif %}{{sub}}</a>
+				<a id="sub-name" href="/h/{{sub}}" class="font-weight-bold ml-2 flex-grow-1 mt-1" {% if sub.name|length >= 17 %}style="font-size:max(10px,1.2vw)"{% else %}style="font-size:max(10px,1.2vw)"{% endif %}>{% if not HOLE_STYLE_FLAIR %}/h/{% endif %}{{sub}}</a>
 			{% elif has_logo %}
 				<style>
 					{% if SITE_NAME == 'WPD' %}