diff --git a/Database.cs b/Database.cs
index 81e11dc..6d980a8 100644
--- a/Database.cs
+++ b/Database.cs
@@ -33,6 +33,7 @@ namespace Database
 				    [ID] INTEGER PRIMARY KEY AUTOINCREMENT,
 				    [DateOfBorrow] DATE,
 				    [DateOfReturn] DATE,
+				    [ReturnDue] DATE,
 				    [UserID] INTEGER,
 				    [BookID] INTEGER,
 				    FOREIGN KEY ([UserID]) REFERENCES [Users]([ID]),