diff --git a/backend/src/file/file.controller.ts b/backend/src/file/file.controller.ts
index f51ca44..551c5b7 100644
--- a/backend/src/file/file.controller.ts
+++ b/backend/src/file/file.controller.ts
@@ -32,7 +32,8 @@ export class FileController {
   ) {
     const { id, name, chunkIndex, totalChunks } = query;
 
-    const data = body.toString().split(",")[1];
+    // Data can be empty if the file is empty
+    const data = body.toString().split(",")[1] ?? "";
 
     return await this.fileService.create(
       data,