diff --git a/lib/dns/include/dns/qp.h b/lib/dns/include/dns/qp.h
index c1d69db59a..52c9cff3c0 100644
--- a/lib/dns/include/dns/qp.h
+++ b/lib/dns/include/dns/qp.h
@@ -545,8 +545,8 @@ dns_qp_lookup(dns_qpreadable_t qpr, const dns_name_t *name, uint16_t type,
  * 'name', matching 'type'.
  *
  * If 'foundname' is not NULL, it will be updated to contain the name
- * that was found (if any). The return code, ISC_R_SUCCESS or
- * DNS_R_PARTIALMATCH, indicates whether the name found is the name
+ * that was found (if any). The return code, ISC_R_SUCCESS, DNS_R_NODATA,
+ * or DNS_R_PARTIALMATCH, indicates whether the name found is the name
  * that was requested, or an ancestor. If the result is ISC_R_NOTFOUND,
  * 'foundname' will not be updated. (NOTE: the name will be constructed
  * from the QP key of the found node, and this can be time-consuming.