diff --git a/src/matrix/net/types/response.ts b/src/matrix/net/types/response.ts
index aabcde73..f1102a1b 100644
--- a/src/matrix/net/types/response.ts
+++ b/src/matrix/net/types/response.ts
@@ -17,7 +17,6 @@ limitations under the License.
 export type Attachment = {
     body: string;
     info: AttachmentInfo;
-    // todo: what about m.audio?
     msgtype: string;
     url?: string;
     file?: EncryptedFile;