diff --git a/spynnaker/pyNN/models/defaults.py b/spynnaker/pyNN/models/defaults.py
index cea4283860..0225a87f28 100644
--- a/spynnaker/pyNN/models/defaults.py
+++ b/spynnaker/pyNN/models/defaults.py
@@ -209,9 +209,9 @@ def __fill_in_defaults(cls):
         default_args = ([] if init_args.args is None else
                         init_args.args[n_args - n_defaults:])
         if init_args.defaults is None:
-           default_values = []
+            default_values = []
         else:
-           default_values = init_args.defaults
+            default_values = init_args.defaults
 
         # get the keys based on the decorators
         if hasattr(init, "_parameters"):
diff --git a/unittests/model_tests/neuron/test_defaults.py b/unittests/model_tests/neuron/test_defaults.py
index ef2f873500..14c9202875 100644
--- a/unittests/model_tests/neuron/test_defaults.py
+++ b/unittests/model_tests/neuron/test_defaults.py
@@ -12,7 +12,6 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from spinn_utilities.abstract_base import AbstractBase, abstractmethod
 from spynnaker.pyNN.config_setup import unittest_setup
 from spynnaker.pyNN.models.defaults import (
     AbstractProvidesDefaults, default_parameters, default_initial_values)