diff --git a/awx/api/serializers.py b/awx/api/serializers.py
index 0f2ffb2d0d..91a8983cb4 100644
--- a/awx/api/serializers.py
+++ b/awx/api/serializers.py
@@ -746,7 +746,7 @@ class PermissionSerializer(BaseSerializer):
         model = Permission
         fields = BASE_FIELDS + ('user', 'team', 'project', 'inventory',
                                 'permission_type',)
-         
+
     def get_related(self, obj):
         if obj is None:
             return {}
diff --git a/awx/main/utils.py b/awx/main/utils.py
index 618e57eb21..82b2eef804 100644
--- a/awx/main/utils.py
+++ b/awx/main/utils.py
@@ -264,6 +264,7 @@ def model_instance_diff(old, new, serializer_mapping=None):
         if old_value != new_value and field not in Credential.PASSWORD_FIELDS:
             if type(old_value) not in (bool, int, type(None)):
                 old_value = str(old_value)
+            if type(new_value) not in (bool, int, type(None)):
                 new_value = str(new_value)
             diff[field] = (old_value, new_value)
         elif old_value != new_value and field in Credential.PASSWORD_FIELDS: