diff --git a/Jellyfin.Server.Implementations/Devices/DeviceManager.cs b/Jellyfin.Server.Implementations/Devices/DeviceManager.cs
index 3d1bc30e8a..0655c9813d 100644
--- a/Jellyfin.Server.Implementations/Devices/DeviceManager.cs
+++ b/Jellyfin.Server.Implementations/Devices/DeviceManager.cs
@@ -206,7 +206,7 @@ namespace Jellyfin.Server.Implementations.Devices
         {
             if (user == null)
             {
-                throw new ArgumentException("user not found");
+                throw new ArgumentNullException(nameof(user));
             }
 
             if (string.IsNullOrEmpty(deviceId))