diff --git a/doc/carddatabase_v4/cards.xsd b/doc/carddatabase_v4/cards.xsd
index 9a879302b..92d30b94f 100644
--- a/doc/carddatabase_v4/cards.xsd
+++ b/doc/carddatabase_v4/cards.xsd
@@ -30,6 +30,7 @@
                 <xs:attribute type="xs:string" name="rarity" use="optional" />
                 <xs:attribute type="xs:boolean" name="isOnlineOnly" use="optional" />
                 <xs:attribute type="xs:boolean" name="isRebalanced" use="optional" />
+                <xs:attribute type="xs:string" name="flavorName" use="optional"/>
             </xs:extension>
         </xs:simpleContent>
     </xs:complexType>