diff --git a/src/ripple/rpc/NFTokenID.h b/src/ripple/rpc/NFTokenID.h
index d30b2ff5d5a..cb218966fda 100644
--- a/src/ripple/rpc/NFTokenID.h
+++ b/src/ripple/rpc/NFTokenID.h
@@ -41,6 +41,7 @@ namespace RPC {
    The field is only added to successful NFTokenMint, NFTokenAcceptOffer,
    and NFTokenCancelOffer transactions.
 
+   Helper functions are not static because they can be used by Clio.
    @{
  */
 bool
diff --git a/src/ripple/rpc/NFTokenOfferID.h b/src/ripple/rpc/NFTokenOfferID.h
index 510275f3429..6c1bef3d127 100644
--- a/src/ripple/rpc/NFTokenOfferID.h
+++ b/src/ripple/rpc/NFTokenOfferID.h
@@ -40,6 +40,7 @@ namespace RPC {
    Add an `offer_id` field to the `meta` output parameter.
    The field is only added to successful NFTokenCreateOffer transactions.
 
+   Helper functions are not static because they can be used by Clio.
    @{
  */
 bool