diff --git a/src/Radarr.Api.V3/System/Backup/BackupController.cs b/src/Radarr.Api.V3/System/Backup/BackupController.cs
index 16d13a315..00c9eedac 100644
--- a/src/Radarr.Api.V3/System/Backup/BackupController.cs
+++ b/src/Radarr.Api.V3/System/Backup/BackupController.cs
@@ -90,6 +90,7 @@ public object Restore(int id)
         }
 
         [HttpPost("restore/upload")]
+        [RequestFormLimits(MultipartBodyLengthLimit = 500000000)]
         public object UploadAndRestore()
         {
             var files = Request.Form.Files;