diff --git a/README.md b/README.md
index b9c815e..1fd8c99 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@ curl --location 'http://localhost:8090/enqueue' \
     --form 'channelLayout="mono"' \
     --form 'uploadUrl="http://127.0.0.1:8909/upload"'
 ```
-3. Your `uploadUrl` will receive JSON response with job ID and error in case of failure and the entire transcoded file contents in case of success. Use `Content-Type` header to differentiate between the two data types.
+3. Your `uploadUrl` will receive JSON response with job ID and error in case of failure and the entire transcoded file contents in case of success (success request will have `X-Task-Id` header with task ID). Use `Content-Type` header to differentiate between the two data types.
 
 You can change configuration using this environment variables:
 - `LISTEN` - change this environment variable to change TCP listen address. Default is `0.0.0.0:8090`.
diff --git a/src/dto.rs b/src/dto.rs
index 51102ec..3ba6962 100644
--- a/src/dto.rs
+++ b/src/dto.rs
@@ -2,11 +2,6 @@ use axum_typed_multipart::{FieldData, TryFromMultipart};
 use serde::{Deserialize, Serialize};
 use tempfile::NamedTempFile;
 
-#[derive(Serialize, Deserialize)]
-pub struct Error {
-    pub error: String,
-}
-
 #[derive(Serialize, Deserialize)]
 pub struct ConvertResponse {
     pub id: Option<String>,
diff --git a/src/server.rs b/src/server.rs
index 698666f..d4fb173 100644
--- a/src/server.rs
+++ b/src/server.rs
@@ -166,4 +166,4 @@ async fn cleanup_directory(dir_path: &str) -> Result<(), Box<dyn std::error::Err
     }
 
     Ok(())
-}
\ No newline at end of file
+}
diff --git a/src/task.rs b/src/task.rs
index 809b2e5..84d7c10 100644
--- a/src/task.rs
+++ b/src/task.rs
@@ -36,7 +36,11 @@ impl Task {
 
         std::fs::remove_file(Path::new(&self.params.input_path)).ok();
 
-        if let Err(err) = upload_file(&self.params.output_path, &self.params.upload_url) {
+        if let Err(err) = upload_file(
+            &self.id.to_string(),
+            &self.params.output_path,
+            &self.params.upload_url,
+        ) {
             error!(
                 "couldn't upload result for job id={}, file path {}: {}",
                 &self.id.to_string(),
@@ -211,6 +215,7 @@ fn send_error(
 }
 
 fn upload_file<P: AsRef<Path>>(
+    id: &str,
     file_path: P,
     url: &str,
 ) -> Result<Response, Box<dyn std::error::Error>> {
@@ -233,6 +238,7 @@ fn upload_file<P: AsRef<Path>>(
             "Content-Disposition",
             &format!("attachment; filename=\"{}\"", file_name),
         )
+        .set("X-Task-Id", id)
         .send_bytes(&buffer)?;
 
     if response.status() == 200 {
diff --git a/src/transcoder.rs b/src/transcoder.rs
index 3d510e7..73e2fdf 100644
--- a/src/transcoder.rs
+++ b/src/transcoder.rs
@@ -240,7 +240,7 @@ fn filter_graph(
     };
     filter.add(&abuffersink_filter, "out", "")?;
 
-    let mut out = match filter.get("out")  {
+    let mut out = match filter.get("out") {
         Some(filter) => filter,
         None => return Err(ffmpeg::Error::Unknown),
     };
@@ -257,9 +257,7 @@ fn filter_graph(
             .contains(codec::capabilities::Capabilities::VARIABLE_FRAME_SIZE)
         {
             if let Some(mut out_filter) = filter.get("out") {
-                out_filter
-                    .sink()
-                    .set_frame_size(encoder.frame_size());
+                out_filter.sink().set_frame_size(encoder.frame_size());
             }
         }
     }