diff --git a/src/geovista/core.py b/src/geovista/core.py
index 69e2b001..480ebd09 100644
--- a/src/geovista/core.py
+++ b/src/geovista/core.py
@@ -19,6 +19,7 @@
 import warnings
 
 import lazy_loader as lazy
+import pyvista as pv
 
 from .common import (
     CENTRAL_MERIDIAN,
@@ -375,7 +376,9 @@ def combine(
         common_point_data = set(first.point_data.keys())
         common_cell_data = set(first.cell_data.keys())
         common_field_data = set(first.field_data.keys())
-        active_scalars_info = {first.active_scalars_info._namedtuple}  # noqa: SLF001
+        active_scalars_info = {
+            pv.core.dataset.ActiveArrayInfoTuple(*first.active_scalars_info)
+        }
 
     for i, mesh in enumerate(meshes):
         if not isinstance(mesh, pv.PolyData):
@@ -425,7 +428,9 @@ def combine(
             common_cell_data &= set(mesh.cell_data.keys())
             common_field_data &= set(mesh.field_data.keys())
             if mesh.active_scalars_name:
-                active_scalars_info &= {mesh.active_scalars_info._namedtuple}  # noqa: SLF001
+                active_scalars_info &= {
+                    pv.core.dataset.ActiveArrayInfoTuple(*mesh.active_scalars_info)
+                }
 
     points = np.vstack(combined_points)
     faces = np.hstack(combined_faces)