diff --git a/AsbCloudWebApi/Controllers/HelpPageController.cs b/AsbCloudWebApi/Controllers/HelpPageController.cs
index 987a64ae..bae2010e 100644
--- a/AsbCloudWebApi/Controllers/HelpPageController.cs
+++ b/AsbCloudWebApi/Controllers/HelpPageController.cs
@@ -92,6 +92,6 @@ public class HelpPageController : ControllerBase
             cancellationToken);
         memoryStream.Position = 0;
         
-        return File(memoryStream, "application/octet-stream", file.fileName);
+        return File(memoryStream, "application/pdf", file.fileName);
     }
 }