diff --git a/atlas/models.py b/atlas/models.py
index cfba88d4..6ef559d5 100644
--- a/atlas/models.py
+++ b/atlas/models.py
@@ -73,7 +73,7 @@ def findMiddle(input_list):
         return input_list[int(middle)]
         return (input_list[int(middle)], input_list[int(middle - 1)])
 
-class SynModel():
+class SynMixin(object):
     #class Meta:
     #    abstract = True
 
@@ -88,13 +88,13 @@ class SynModel():
             return f"{self.name} [syn]"
 
 
-class Finding(SynModel, models.Model):
+class Finding(SynMixin, models.Model):
     name = models.CharField(max_length=255)
     synonym = models.ManyToManyField("self", blank=True)
 
     primary_name = models.BooleanField(default="True")
 
-class Condition(models.Model, SynModel):
+class Condition(SynMixin, models.Model):
     name = models.CharField(max_length=255)
 
     synonym = models.ManyToManyField("self", blank=True)