diff --git a/apps/red-ui/src/app/upload/file-upload.service.ts b/apps/red-ui/src/app/upload/file-upload.service.ts
index 17f7b988b..c64284b9e 100644
--- a/apps/red-ui/src/app/upload/file-upload.service.ts
+++ b/apps/red-ui/src/app/upload/file-upload.service.ts
@@ -34,7 +34,7 @@ export class FileUploadService {
     }
 
     uploadFiles(files: FileUploadModel[]) {
-        files = files.filter((file) => file.file.type.toLowerCase() === 'application/pdf');
+        files = files.filter((file) => file.file.type?.toLowerCase() === 'application/pdf' || file.file.name.toLowerCase().endsWith('.pdf'));
         files.sort((a, b) => a.file.size - b.file.size);
         this.files.push(...files);
         files.forEach((newFile) => {