diff --git a/apps/establishment/serializers/common.py b/apps/establishment/serializers/common.py
index e3857bd7..f3ae3dc0 100644
--- a/apps/establishment/serializers/common.py
+++ b/apps/establishment/serializers/common.py
@@ -145,6 +145,7 @@ class EstablishmentBaseSerializer(ProjectModelSerializer):
     slug = serializers.SlugField(allow_blank=False, required=True, max_length=50)
     address = AddressSerializer()
     tags = MetaDataContentSerializer(many=True)
+    in_favorites = serializers.BooleanField(allow_null=True)
 
     class Meta:
         """Meta class."""
@@ -168,14 +169,6 @@ class EstablishmentBaseSerializer(ProjectModelSerializer):
 class EstablishmentListSerializer(EstablishmentBaseSerializer):
     """Serializer for Establishment model."""
 
-    in_favorites = serializers.BooleanField(allow_null=True)
-
-    class Meta(EstablishmentBaseSerializer.Meta):
-        """Meta class."""
-
-        fields = EstablishmentBaseSerializer.Meta.fields + [
-            'in_favorites',
-        ]
 
 class EstablishmentAllListSerializer(EstablishmentListSerializer):
     """ Serailizer for api/*/establishments """