diff --git a/src/graceful/serializers.py b/src/graceful/serializers.py
index 6667bf9..7af5fc3 100644
--- a/src/graceful/serializers.py
+++ b/src/graceful/serializers.py
@@ -259,7 +259,7 @@ def _(names):
                         for name, value in names.items()
                     }
                 else:
-                    return names
+                    return names  # pragma: nocover
 
             raise DeserializationError(_(missing), _(forbidden), _(invalid))
 
diff --git a/tests/test_serializers.py b/tests/test_serializers.py
index f8b9480..7ec4804 100644
--- a/tests/test_serializers.py
+++ b/tests/test_serializers.py
@@ -207,15 +207,21 @@ def test_serializer_source_wildcard():
 
 def test_serializer_source_field_with_wildcard():
     class ExampleSerializer(BaseSerializer):
-        instance = ExampleField(
+        starfield = ExampleField(
             details='whole object instance goes here',
             source='*',
         )
 
     serializer = ExampleSerializer()
-    instance = {'foo', 'bar'}
-
-    assert serializer.to_representation(instance)['instance'] == instance
+    instance = {'foo': 'bar'}
+    representation = {"starfield": "bizbaz"}
+
+    assert serializer.to_representation(
+        instance
+    )['starfield'] == instance
+    assert serializer.from_representation(
+        representation
+    )['starfield'] == representation["starfield"]
 
 
 def test_serializer_describe():