diff --git a/app/serializers/doi_serializer.rb b/app/serializers/doi_serializer.rb
index 7abbf609a..bd8771164 100644
--- a/app/serializers/doi_serializer.rb
+++ b/app/serializers/doi_serializer.rb
@@ -20,12 +20,8 @@ class DoiSerializer
   end
 
   attribute :creators do |object|
-    # If we're just a hash then force this over to a list.
-    if object.creators.class == Hash
-      object.creators = [object.creators]
-    end
-
-    object.creators
+    # Always return an array of creators
+    Array.wrap(object.creators)
   end
 
   attribute :state do |object|