diff --git a/app/models/book_contributor.py b/app/models/book_contributor.py
index fdce3d6..c88959f 100644
--- a/app/models/book_contributor.py
+++ b/app/models/book_contributor.py
@@ -8,7 +8,7 @@ class BookContributor(BaseModel):
     __tablename__ = "book_contributors"
 
     class Roles(IntEnum):
-        UNKNOWN = 10
+        UNKNOWN = 0
         MODERATOR = 1
         EDITOR = 2