diff --git a/src/logic/dataclass.py b/src/logic/dataclass.py
index 569c984..f219706 100644
--- a/src/logic/dataclass.py
+++ b/src/logic/dataclass.py
@@ -43,6 +43,7 @@ class BookData:
     place: str | None = None
     year: str | None = None
     pages: str | None = None
+    library_location: int | None = None
 
     def from_dict(self, data: dict):
         for key, value in data.items():