diff --git a/src/main.rs b/src/main.rs
index 65fa91b..6d53dbc 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -135,7 +135,7 @@ async fn post_item(
     Path(id): Path<String>,
     Query(params): Query<PostQuery>,
     State(app_state): State<AppState>,
-    TypedHeader(content_type): TypedHeader<ContentType>,
+    content_type: Option<TypedHeader<ContentType>>,
     mut stream: BodyStream,
 ) -> HandlerResult<impl IntoResponse> {
     let id = sanitize_id(id);
@@ -171,7 +171,7 @@ async fn post_item(
             data_file.write_all(&buf).await.unwrap();
         }
 
-        metadata.mimetype = Some(content_type.to_string());
+        metadata.mimetype = content_type.map(|x| x.0.to_string());
         metadata.ttl = Some(expires_at);
 
         metadata.to_file(&app_state.path, &id).await.unwrap();