diff --git a/ncats_rare_source/smartapi.yaml b/ncats_rare_source/smartapi.yaml
index fe00028..d65d7fd 100644
--- a/ncats_rare_source/smartapi.yaml
+++ b/ncats_rare_source/smartapi.yaml
@@ -633,6 +633,7 @@ components:
       - id: NCBIGene
         semantic: Gene
       parameters:
+      ## don't need always_list because raresource.disease can be a single-element array
       ## no prefix on output, need the whole thing for jmespath to work
         fields: entrezgene,symbol,raresource.disease
         jmespath: "raresource.disease|[?orphanet=='{{ queryInputs }}']"