diff --git a/prisma/schema.prisma b/prisma/schema.prisma
index 86e0172..09109a1 100644
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@@ -42,8 +42,8 @@ model Item {
 
   manufacturer String
 
-  category   itemCategory @relation(fields: [categoryId], references: [id])
-  categoryId Int
+  category   itemCategory? @relation(fields: [categoryId], references: [id])
+  categoryId Int?
 
   items    Item[] @relation("items") /// Item beinhaltet..
   baseItem Item[] @relation("items") /// Item zugehörig zu.