diff --git a/packages/backend/src/server/api/endpoints/notes/search.ts b/packages/backend/src/server/api/endpoints/notes/search.ts
index ca64017fa4..6247bd6526 100644
--- a/packages/backend/src/server/api/endpoints/notes/search.ts
+++ b/packages/backend/src/server/api/endpoints/notes/search.ts
@@ -62,6 +62,7 @@ export const paramDef = {
 			type: "string",
 			default: "chronological",
 			nullable: true,
+			description: "Either 'chronological' or 'relevancy'",
 		},
 	},
 	required: ["query"],