diff --git a/templates/sponsors.html b/templates/sponsors.html
index 4c91106936..67e011d738 100644
--- a/templates/sponsors.html
+++ b/templates/sponsors.html
@@ -73,6 +73,8 @@ <h3 class="sponsors__amount">${{ tier.amount }} / month</h3>
                 src="/assets/donor_logos/{{ donor.logo }}"
                 {% if donor.name %}
                 alt="{{ donor.name }} logo"
+                {% else %}
+                alt="{{ donor.logo | split(pat=".") | first }} logo"
                 {% endif %}
             />
         </a>