diff --git a/NzbDrone.Core.Test/ProviderTests/SeriesProviderTest.cs b/NzbDrone.Core.Test/ProviderTests/SeriesProviderTest.cs
index 17d2a2c12..379421e06 100644
--- a/NzbDrone.Core.Test/ProviderTests/SeriesProviderTest.cs
+++ b/NzbDrone.Core.Test/ProviderTests/SeriesProviderTest.cs
@@ -46,6 +46,15 @@ public void Add_new_series(bool useSeasonFolder)
             series.First().SeasonFolder.Should().Be(useSeasonFolder);
         }
 
+
+        [TestCase(0)]
+        [TestCase(-1)]
+        public void add_series_should_fail_if_series_is_less_than_zero(int seriesId)
+        {
+            WithRealDb();
+            Assert.Throws<ArgumentOutOfRangeException>(() => Mocker.Resolve<SeriesProvider>().AddSeries("C:\\Test", seriesId, 1));
+        }
+
         [Test]
         public void find_series_empty_repo()
         {
diff --git a/NzbDrone.Core/Jobs/UpdateInfoJob.cs b/NzbDrone.Core/Jobs/UpdateInfoJob.cs
index bd63cf978..4217e11cd 100644
--- a/NzbDrone.Core/Jobs/UpdateInfoJob.cs
+++ b/NzbDrone.Core/Jobs/UpdateInfoJob.cs
@@ -50,7 +50,7 @@ public virtual void Start(ProgressNotification notification, int targetId, int s
             }
             else
             {
-                seriesToUpdate = new List<Series>() { _seriesProvider.GetSeries(targetId) };
+                seriesToUpdate = new List<Series> { _seriesProvider.GetSeries(targetId) };
             }
 
             //Update any Daily Series in the DB with the IsDaily flag
diff --git a/NzbDrone.Core/Providers/SeriesProvider.cs b/NzbDrone.Core/Providers/SeriesProvider.cs
index 07f6a637e..69a029755 100644
--- a/NzbDrone.Core/Providers/SeriesProvider.cs
+++ b/NzbDrone.Core/Providers/SeriesProvider.cs
@@ -104,6 +104,11 @@ public virtual void AddSeries(string path, int tvDbSeriesId, int qualityProfileI
         {
             Logger.Info("Adding Series [{0}] Path: [{1}]", tvDbSeriesId, path);
 
+            if (tvDbSeriesId <=0)
+            {
+                throw new ArgumentOutOfRangeException("tvDbSeriesId", tvDbSeriesId.ToString());
+            }
+
             var repoSeries = new Series();
             repoSeries.SeriesId = tvDbSeriesId;
             repoSeries.Path = path;