diff --git a/pytiled_parser/common_types.py b/pytiled_parser/common_types.py
index 95c7196..9d88004 100644
--- a/pytiled_parser/common_types.py
+++ b/pytiled_parser/common_types.py
@@ -19,7 +19,7 @@ class Size(NamedTuple):
 
     Attributes:
         width: The width of the object.
-        size: The height of the object.
+        height: The height of the object.
     """
 
     width: Union[int, float]