diff --git a/packages/rest-typings/src/v1/rooms.ts b/packages/rest-typings/src/v1/rooms.ts
index 7cab2270fe50..e9b28a51140c 100644
--- a/packages/rest-typings/src/v1/rooms.ts
+++ b/packages/rest-typings/src/v1/rooms.ts
@@ -607,6 +607,7 @@ const roomsOpenSchema = {
 	properties: {
 		roomId: {
 			type: 'string',
+			minLength: 1,
 		},
 	},
 	required: ['roomId'],