diff --git a/membershipworks/templates/membershipworks/event_invoice.dj.html b/membershipworks/templates/membershipworks/event_invoice.dj.html
index 7b45406..eda8c23 100644
--- a/membershipworks/templates/membershipworks/event_invoice.dj.html
+++ b/membershipworks/templates/membershipworks/event_invoice.dj.html
@@ -36,14 +36,14 @@
     </p>
     <p>
       <b>Materials Fee <span class="font-monospace fw-light">[m]</span>:</b>
-      {% if event.materials_fee_included_in_price is None %}
-        Unknown if included in price
-      {% elif event.materials_fee_included_in_price %}
+      {% if event.materials_fee_included_in_price or event.materials_fee == 0 %}
         {% if event.materials_fee is not None %}
           ${{ event.materials_fee|floatformat:2 }}
         {% else %}
           Not defined
         {% endif %}
+      {% elif event.materials_fee_included_in_price is None %}
+        Unknown if included in price
       {% else %}
         Not collected by CMS
       {% endif %}