diff --git a/pinaxcon/templates/symposion/sponsorship/list.html b/pinaxcon/templates/symposion/sponsorship/list.html
index 8e32005e00524a126a69b1086315bc839e2090b7..389bef09dd265187dfac1a952f3f9b0b379beda4 100644
--- a/pinaxcon/templates/symposion/sponsorship/list.html
+++ b/pinaxcon/templates/symposion/sponsorship/list.html
@@ -1,6 +1,7 @@
 {% extends "symposion/sponsorship/list_.html" %}
 
 {% load sponsorship_tags %}
+{% load thumbnail %}
 
 {% block lede %}
   We're grateful to the following organizations, who've made a substantial contribution to CopyleftConf 2020. Learn how you can join us by checking out <a href="/sponsors/become-a-sponsor">our prospectus</a>.