diff --git a/apps/viewer/pages/api/typebots/[typebotId]/blocks/[blockId]/storage/upload-url.ts b/apps/viewer/pages/api/typebots/[typebotId]/blocks/[blockId]/storage/upload-url.ts
index 3f433d00b..3cfdfcae9 100644
--- a/apps/viewer/pages/api/typebots/[typebotId]/blocks/[blockId]/storage/upload-url.ts
+++ b/apps/viewer/pages/api/typebots/[typebotId]/blocks/[blockId]/storage/upload-url.ts
@@ -23,14 +23,15 @@ const handler = async (
     const fileType = req.query.fileType as string | undefined
     const typebotId = req.query.typebotId as string
     const blockId = req.query.blockId as string
-    if (!filePath || !fileType) return badRequest(res)
+    if (!filePath) return badRequest(res, 'Missing filePath or fileType')
     const typebot = (await prisma.publicTypebot.findFirst({
       where: { typebotId },
     })) as unknown as PublicTypebot
     const fileUploadBlock = typebot.groups
       .flatMap((g) => g.blocks)
       .find(byId(blockId))
-    if (fileUploadBlock?.type !== InputBlockType.FILE) return badRequest(res)
+    if (fileUploadBlock?.type !== InputBlockType.FILE)
+      return badRequest(res, 'Not a file upload block')
     const sizeLimit = fileUploadBlock.options.sizeLimit
       ? Math.min(fileUploadBlock.options.sizeLimit, 500)
       : 10
diff --git a/packages/bot-engine/src/components/ChatGroup/ChatBlock/inputs/FileUploadForm.tsx b/packages/bot-engine/src/components/ChatGroup/ChatBlock/inputs/FileUploadForm.tsx
index 65d1d5437..1590e3645 100644
--- a/packages/bot-engine/src/components/ChatGroup/ChatBlock/inputs/FileUploadForm.tsx
+++ b/packages/bot-engine/src/components/ChatGroup/ChatBlock/inputs/FileUploadForm.tsx
@@ -24,7 +24,7 @@ export const FileUploadForm = ({
   const { resultId } = useAnswers()
   const [selectedFiles, setSelectedFiles] = useState<File[]>([])
   const [isUploading, setIsUploading] = useState(false)
-  const [uploadProgressPercent, setUploadProgressPercent] = useState(20)
+  const [uploadProgressPercent, setUploadProgressPercent] = useState(10)
   const [isDraggingOver, setIsDraggingOver] = useState(false)
   const [errorMessage, setErrorMessage] = useState<string>()
 
diff --git a/packages/utils/src/api/storage.ts b/packages/utils/src/api/storage.ts
index 4e5fd3b20..4aea91c22 100644
--- a/packages/utils/src/api/storage.ts
+++ b/packages/utils/src/api/storage.ts
@@ -2,7 +2,7 @@ import { config, Endpoint, S3 } from 'aws-sdk'
 
 type GeneratePresignedUrlProps = {
   filePath: string
-  fileType: string
+  fileType?: string
   sizeLimit?: number
 }