diff --git a/modal_proto/api.proto b/modal_proto/api.proto
index 4a605a467..e80bb16ff 100644
--- a/modal_proto/api.proto
+++ b/modal_proto/api.proto
@@ -1220,7 +1220,6 @@ message FunctionAsyncInvokeRequest {
 message FunctionAsyncInvokeResponse {
   bool retry_with_blob_upload = 1;
   string function_call_id = 2;
-  string input_id = 3;
 }
 
 message FunctionBindParamsRequest {