diff --git a/src/routes/items.svelte b/src/routes/items.svelte
index 322baf58..4b2cdae1 100644
--- a/src/routes/items.svelte
+++ b/src/routes/items.svelte
@@ -105,6 +105,12 @@
             allItems[item.item.id][character.id] = 'characters';
           }
         }
+
+        const bossMaterial = character.material.boss;
+        if (allItems[bossMaterial.id] === undefined) {
+          allItems[bossMaterial.id] = {};
+        }
+        allItems[bossMaterial.id][character.id] = 'characters';
       }
     }