diff --git a/NzbDrone.Core/Controllers/SeriesController.cs b/NzbDrone.Core/Controllers/SeriesController.cs
index cf210ad9d..3eaa41d10 100644
--- a/NzbDrone.Core/Controllers/SeriesController.cs
+++ b/NzbDrone.Core/Controllers/SeriesController.cs
@@ -34,7 +34,7 @@ namespace NzbDrone.Core.Controllers
 
         public Series GetSeries(int tvdbId)
         {
-            return _sonioRepo.Single<Series>(s=> s.TvdbId == tvdbId);
+            return _sonioRepo.Single<Series>(s=> s.TvdbId == tvdbId.ToString());
         }
 
 
@@ -67,7 +67,7 @@ namespace NzbDrone.Core.Controllers
 
         private void AddShow(string path, TvdbSeries series)
         {
-            _sonioRepo.Add(new Series { TvdbId = series.Id, SeriesName = series.SeriesName, AirTimes = series.AirsTime, AirsDayOfWeek = series.AirsDayOfWeek, Overview = series.Overview, Status = series.Status, Language = series.Language.Abbriviation, Path = path });
+            _sonioRepo.Add(new Series { TvdbId = series.Id.ToString(), SeriesName = series.SeriesName, AirTimes = series.AirsTime, AirsDayOfWeek = series.AirsDayOfWeek, Overview = series.Overview, Status = series.Status, Language = series.Language.Abbriviation, Path = path });
         }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/Repository/Series.cs b/NzbDrone.Core/Repository/Series.cs
index e39853b80..185aabeef 100644
--- a/NzbDrone.Core/Repository/Series.cs
+++ b/NzbDrone.Core/Repository/Series.cs
@@ -6,7 +6,7 @@ namespace NzbDrone.Core.Repository
     public class Series
     {
         [SubSonicPrimaryKey]
-        public int TvdbId
+        public string TvdbId
         {
             get;
             set;