diff --git a/packages/backend/src/server/FileServerService.ts b/packages/backend/src/server/FileServerService.ts
index 6d24898accac..183f7cb8d7cc 100644
--- a/packages/backend/src/server/FileServerService.ts
+++ b/packages/backend/src/server/FileServerService.ts
@@ -192,6 +192,7 @@ export class FileServerService {
 						reply.header('Content-Range', `bytes ${start}-${end}/${file.file.size}`);
 						reply.header('Accept-Ranges', 'bytes');
 						reply.header('Content-Length', chunksize);
+						reply.code(206);
 					} else {
 						image = {
 							data: fs.createReadStream(file.path),
@@ -431,6 +432,7 @@ export class FileServerService {
 					reply.header('Content-Range', `bytes ${start}-${end}/${file.file.size}`);
 					reply.header('Accept-Ranges', 'bytes');
 					reply.header('Content-Length', chunksize);
+					reply.code(206);
 				} else {
 					image = {
 						data: fs.createReadStream(file.path),