diff --git a/Wrapping/Python/vtkmodules/util/xarray_support.py b/Wrapping/Python/vtkmodules/util/xarray_support.py
index 8613df31f2498b8167d763a83d4c126bc1574eb7..f521471b9f75c3f50ab49515ad7dd8e950c36951 100644
--- a/Wrapping/Python/vtkmodules/util/xarray_support.py
+++ b/Wrapping/Python/vtkmodules/util/xarray_support.py
@@ -23,6 +23,7 @@ class VtkAccessor:
         self._dsxr = dsxr
         self._reader = vtkXArrayCFReader()
 
+    @property
     def reader(self):
         '''
         Returns a vtkXArrayCFReader that reads data from the XArray