diff --git a/mala/common/parameters.py b/mala/common/parameters.py
index 5ec123e0..1a456ca8 100644
--- a/mala/common/parameters.py
+++ b/mala/common/parameters.py
@@ -1591,6 +1591,18 @@ def load_from_file(
                     ].from_json(json_dict[key])
                     setattr(loaded_parameters, key, sub_parameters)
 
+                    # Backwards compatability:
+                    if key == "descriptors":
+                        if (
+                            "use_atomic_density_energy_formula"
+                            in json_dict[key]
+                        ):
+                            loaded_parameters.use_atomic_density_formula = (
+                                json_dict[key][
+                                    "use_atomic_density_energy_formula"
+                                ]
+                            )
+
             # We iterate a second time, to set global values, so that they
             # are properly forwarded.
             for key in json_dict: