diff --git a/python/tests/test_swig_interface.py b/python/tests/test_swig_interface.py
index 41845c9d37..ffec95b77b 100644
--- a/python/tests/test_swig_interface.py
+++ b/python/tests/test_swig_interface.py
@@ -509,7 +509,6 @@ def test_rdataview(sbml_example_presimulation_module):
     model_module = sbml_example_presimulation_module
     model = model_module.getModel()
     rdata = amici.runAmiciSimulation(model, model.getSolver())
-
     assert isinstance(rdata, amici.ReturnDataView)
 
     # fields are accessible via dot notation and [] operator,
@@ -517,6 +516,9 @@ def test_rdataview(sbml_example_presimulation_module):
     with pytest.raises(AttributeError):
         _ = rdata.nonexisting_attribute
 
+    with pytest.raises(KeyError):
+        _ = rdata["nonexisting_attribute"]
+
     assert not hasattr(rdata, "nonexisting_attribute")
     assert "x" in rdata
     assert rdata.x == rdata["x"]