diff --git a/script/hassfest/model.py b/script/hassfest/model.py
index cacc53f87805bb..c993689aaab4d5 100644
--- a/script/hassfest/model.py
+++ b/script/hassfest/model.py
@@ -74,9 +74,9 @@ def domain(self) -> str:
         return self.path.name
 
     @property
-    def disabled(self) -> str:
+    def disabled(self) -> Optional[str]:
         """List of disabled."""
-        return self.manifest.get("disabled", None)
+        return self.manifest.get("disabled")
 
     @property
     def requirements(self) -> List[str]: