diff --git a/tests/nodes/test_cutout_nodes.py b/tests/nodes/test_cutout_nodes.py
index a18424da..e6484ae9 100644
--- a/tests/nodes/test_cutout_nodes.py
+++ b/tests/nodes/test_cutout_nodes.py
@@ -1,18 +1,19 @@
 import pytest
 import torch
+from omegaconf import OmegaConf
 from torch_geometric.data import HeteroData
 
 from anemoi.graphs.nodes.attributes import AreaWeights
 from anemoi.graphs.nodes.attributes import UniformWeights
 from anemoi.graphs.nodes.builders import from_file
 
+dataset_cfg = OmegaConf.create({"cutout": ["lam.zarr", "global.zarr"]})
+
 
 def test_init(mocker, mock_zarr_dataset_cutout):
     """Test CutOutZarrDatasetNodes initialization."""
     mocker.patch.object(from_file, "open_dataset", return_value=mock_zarr_dataset_cutout)
-    node_builder = from_file.CutOutZarrDatasetNodes(
-        forcing_dataset="global.zarr", lam_dataset="lam.zarr", name="test_nodes"
-    )
+    node_builder = from_file.CutOutZarrDatasetNodes(dataset_cfg, name="test_nodes")
 
     assert isinstance(node_builder, from_file.BaseNodeBuilder)
     assert isinstance(node_builder, from_file.CutOutZarrDatasetNodes)
@@ -20,16 +21,14 @@ def test_init(mocker, mock_zarr_dataset_cutout):
 
 def test_fail_init():
     """Test CutOutZarrDatasetNodes initialization with invalid resolution."""
-    with pytest.raises(TypeError):
+    with pytest.raises(AssertionError):
         from_file.CutOutZarrDatasetNodes("global_dataset.zarr", name="test_nodes")
 
 
 def test_register_nodes(mocker, mock_zarr_dataset_cutout):
     """Test CutOutZarrDatasetNodes register correctly the nodes."""
     mocker.patch.object(from_file, "open_dataset", return_value=mock_zarr_dataset_cutout)
-    node_builder = from_file.CutOutZarrDatasetNodes(
-        forcing_dataset="global.zarr", lam_dataset="lam.zarr", name="test_nodes"
-    )
+    node_builder = from_file.CutOutZarrDatasetNodes(dataset_cfg, name="test_nodes")
     graph = HeteroData()
 
     graph = node_builder.register_nodes(graph)
@@ -44,9 +43,7 @@ def test_register_nodes(mocker, mock_zarr_dataset_cutout):
 def test_register_attributes(mocker, mock_zarr_dataset_cutout, graph_with_nodes: HeteroData, attr_class):
     """Test CutOutZarrDatasetNodes register correctly the weights."""
     mocker.patch.object(from_file, "open_dataset", return_value=mock_zarr_dataset_cutout)
-    node_builder = from_file.CutOutZarrDatasetNodes(
-        forcing_dataset="global.zarr", lam_dataset="lam.zarr", name="test_nodes"
-    )
+    node_builder = from_file.CutOutZarrDatasetNodes(dataset_cfg, name="test_nodes")
     config = {"test_attr": {"_target_": f"anemoi.graphs.nodes.attributes.{attr_class.__name__}"}}
 
     graph = node_builder.register_attributes(graph_with_nodes, config)