diff --git a/frontend/src/views/knowledge/cases.vue b/frontend/src/views/knowledge/cases.vue
index afde4ccd..cc25d587 100644
--- a/frontend/src/views/knowledge/cases.vue
+++ b/frontend/src/views/knowledge/cases.vue
@@ -279,7 +279,6 @@ async function uploadAudio(file: File) {
   try {
     const form = new FormData();
     form.append('file', file);
-    form.append('projectExtOrgId', 'mobile-upload');
     const { data } = await uploadCaseAudio(form);
     caseId.value = data.caseId;
     apiMode.value = 'api';