diff --git a/crates/core/src/message/search.rs b/crates/core/src/message/search.rs
index 2efc43d..910fc15 100644
--- a/crates/core/src/message/search.rs
+++ b/crates/core/src/message/search.rs
@@ -74,9 +74,11 @@ pub enum SortBy {
     SIZE,
     /// Sort by the IMAP server INTERNALDATE timestamp.
     #[serde(rename = "INTERNAL_DATE")]
+    #[cfg_attr(feature = "web-api", oai(rename = "INTERNAL_DATE"))]
     InternalDate,
     /// Sort by Bichon's archival (ingest) timestamp.
     #[serde(rename = "INGEST_AT")]
+    #[cfg_attr(feature = "web-api", oai(rename = "INGEST_AT"))]
     IngestAt,
 }