diff --git a/src/NzbDrone.Core/Datastore/Migration/120_update_series_episodes_history_indexes.cs b/src/NzbDrone.Core/Datastore/Migration/120_update_series_episodes_history_indexes.cs
index e2363a836..9028b38df 100644
--- a/src/NzbDrone.Core/Datastore/Migration/120_update_series_episodes_history_indexes.cs
+++ b/src/NzbDrone.Core/Datastore/Migration/120_update_series_episodes_history_indexes.cs
@@ -8,7 +8,6 @@ namespace NzbDrone.Core.Datastore.Migration
     {
         protected override void MainDbUpgrade()
         {
-            Create.Index().OnTable("Series").OnColumn("TvdbId").Ascending();
             Create.Index().OnTable("Episodes").OnColumn("SeriesId").Ascending()
                                               .OnColumn("AirDate").Ascending();