diff --git a/src/chat/Chat.ts b/src/chat/Chat.ts
index fe1f256ec6..6f9fb9b329 100644
--- a/src/chat/Chat.ts
+++ b/src/chat/Chat.ts
@@ -893,7 +893,7 @@ export class Chat extends Emittery<ChatEventTypes> {
     options = {
       ...this.defaultSendMessageOptions,
       ...{
-        type: 'document',
+        type: 'auto-detect',
       },
       ...options,
     };
diff --git a/src/chat/types.ts b/src/chat/types.ts
index 9847b60288..e2285c4360 100644
--- a/src/chat/types.ts
+++ b/src/chat/types.ts
@@ -163,6 +163,10 @@ export interface FileMessageOptions extends SendMessageOptions {
   mimetype?: string;
 }
 
+export interface AutoDetectMessageOptions extends FileMessageOptions {
+  type: 'auto-detect';
+}
+
 export interface AudioMessageOptions extends FileMessageOptions {
   type: 'audio';
   isPtt?: boolean;