diff --git a/backend/src/quick-import/quick-import.service.ts b/backend/src/quick-import/quick-import.service.ts
index b4585141..b0afc934 100644
--- a/backend/src/quick-import/quick-import.service.ts
+++ b/backend/src/quick-import/quick-import.service.ts
@@ -53,7 +53,7 @@ export class QuickImportService {
     const form = new FormData();
     form.append(
       'file',
-      new Blob([file.buffer.buffer.slice(file.buffer.byteOffset, file.buffer.byteOffset + file.buffer.byteLength)], { type: file.mimetype }),
+      new Blob([new Uint8Array(file.buffer)], { type: file.mimetype }),
       file.originalname,
     );
 
diff --git a/backend/src/receipt-import/receipt-import.service.ts b/backend/src/receipt-import/receipt-import.service.ts
index 87bc54ed..305c0234 100644
--- a/backend/src/receipt-import/receipt-import.service.ts
+++ b/backend/src/receipt-import/receipt-import.service.ts
@@ -40,7 +40,7 @@ export class ReceiptImportService {
     const form = new FormData();
     form.append(
       'file',
-      new Blob([file.buffer.buffer.slice(file.buffer.byteOffset, file.buffer.byteOffset + file.buffer.byteLength)], { type: file.mimetype }),
+      new Blob([new Uint8Array(file.buffer)], { type: file.mimetype }),
       file.originalname,
     );