diff --git a/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs b/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs
index 2c49245f0..a9e05aa72 100644
--- a/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs
+++ b/src/NzbDrone.Core/Indexers/Definitions/Cardigann/CardigannParser.cs
@@ -426,6 +426,12 @@ public IList<ReleaseInfo> ParseResponse(IndexerResponse indexerResponse)
                 {
                     ((TorrentInfo)c).InfoHash = MagnetLinkBuilder.GetInfoHashFromMagnet(((TorrentInfo)c).MagnetUrl);
                 }
+
+                // Add Internal flag if description starts with Internal
+                if (c.Description.IsNotNullOrWhiteSpace() && c.Description.StartsWith("Internal"))
+                {
+                    c.IndexerFlags.Add(IndexerFlag.Internal);
+                }
             });
 
             _logger.Trace("Cardigann ({0}): Got {1} releases", _definition.Id, releases.Count);