diff --git a/auditlog/models.py b/auditlog/models.py
index d69ef76..adfc943 100644
--- a/auditlog/models.py
+++ b/auditlog/models.py
@@ -353,7 +353,7 @@ class LogEntry(models.Model):
             values_display = []
             # handle choices fields and Postgres ArrayField to get human readable version
             choices_dict = None
-            if getattr(field, "choices") and len(field.choices) > 0:
+            if getattr(field, "choices", None) and len(field.choices) > 0:
                 choices_dict = dict(field.choices)
             if (
                 hasattr(field, "base_field")
diff --git a/auditlog_tests/models.py b/auditlog_tests/models.py
index 68d04d5..0e6af49 100644
--- a/auditlog_tests/models.py
+++ b/auditlog_tests/models.py
@@ -73,7 +73,9 @@ class RelatedModel(RelatedModelParent):
     A model with a foreign key.
     """
 
-    related = models.ForeignKey(to="SimpleModel", on_delete=models.CASCADE)
+    related = models.ForeignKey(
+        "SimpleModel", related_name="related_models", on_delete=models.CASCADE
+    )
     one_to_one = models.OneToOneField(
         to="SimpleModel", on_delete=models.CASCADE, related_name="reverse_one_to_one"
     )
diff --git a/auditlog_tests/tests.py b/auditlog_tests/tests.py
index 3d6f90b..f32d640 100644
--- a/auditlog_tests/tests.py
+++ b/auditlog_tests/tests.py
@@ -1131,6 +1131,12 @@ class ChoicesFieldModelTest(TestCase):
             msg="The human readable text 'Red' is displayed.",
         )
 
+    def test_changes_display_dict_many_to_one_relation(self):
+        obj = SimpleModel()
+        obj.save()
+        history = obj.history.get()
+        assert "related_models" in history.changes_display_dict
+
 
 class CharfieldTextfieldModelTest(TestCase):
     def setUp(self):
@@ -1446,11 +1452,11 @@ class ModelInstanceDiffTest(TestCase):
             simple1.reverse_one_to_one  # equals None
 
         # accessing relatedmodel_set won't trigger DoesNotExist.
-        self.assertEqual(simple1.relatedmodel_set.count(), 0)
+        self.assertEqual(simple1.related_models.count(), 0)
 
         # simple2 DOES have these relations
         self.assertEqual(simple2.reverse_one_to_one, related)
-        self.assertEqual(simple2.relatedmodel_set.count(), 1)
+        self.assertEqual(simple2.related_models.count(), 1)
 
         model_instance_diff(simple2, simple1)
         model_instance_diff(simple1, simple2)