diff --git a/src/NzbDrone.Core/Indexers/Definitions/Avistaz/AvistazSettings.cs b/src/NzbDrone.Core/Indexers/Definitions/Avistaz/AvistazSettings.cs
index 935d656e1..ba4dc1d7f 100644
--- a/src/NzbDrone.Core/Indexers/Definitions/Avistaz/AvistazSettings.cs
+++ b/src/NzbDrone.Core/Indexers/Definitions/Avistaz/AvistazSettings.cs
@@ -11,6 +11,7 @@ namespace NzbDrone.Core.Indexers.Definitions.Avistaz
         {
             RuleFor(c => c.Username).NotEmpty();
             RuleFor(c => c.Password).NotEmpty();
+            RuleFor(c => c.Pid).NotEmpty();
         }
     }