diff --git a/DiscImageChef.Server/Controllers/UpdateController.cs b/DiscImageChef.Server/Controllers/UpdateController.cs
index 5232c2681..423f5502d 100644
--- a/DiscImageChef.Server/Controllers/UpdateController.cs
+++ b/DiscImageChef.Server/Controllers/UpdateController.cs
@@ -81,7 +81,7 @@ namespace DiscImageChef.Server.Controllers
             sync.Devices = new List<DeviceDto>();
             foreach(Device device in ctx.Devices.Where(d => d.ModifiedWhen > lastSync).ToList())
                 sync.Devices.Add(new
-                                     DeviceDto(JsonConvert.DeserializeObject<DeviceReportV2>(JsonConvert.SerializeObject(device)),
+                                     DeviceDto(JsonConvert.DeserializeObject<DeviceReportV2>(JsonConvert.SerializeObject(device, Formatting.None, new JsonSerializerSettings {ReferenceLoopHandling = ReferenceLoopHandling.Ignore})),
                                                device.Id, device.OptimalMultipleSectorsRead));
 
             JsonSerializer js = JsonSerializer.Create();