diff --git a/datatypes/magicplan/domain/models.py b/datatypes/magicplan/domain/models.py
index 4f488001..c233bb6b 100644
--- a/datatypes/magicplan/domain/models.py
+++ b/datatypes/magicplan/domain/models.py
@@ -20,19 +20,19 @@ class Room:
     width: float
     length: float
     area: float
-    windows: list[Window] = field(default_factory=list)
-    doors: list[Door] = field(default_factory=list)
+    windows: list[Window] = field(default_factory=list[Window])
+    doors: list[Door] = field(default_factory=list[Door])
 
 
 @dataclass
 class Floor:
     level: int | None
     name: str | None
-    rooms: list[Room] = field(default_factory=list)
+    rooms: list[Room] = field(default_factory=list[Room])
 
 
 @dataclass
 class Plan:
     uid: str
     name: str | None
-    floors: list[Floor] = field(default_factory=list)
+    floors: list[Floor] = field(default_factory=list[Floor])