diff --git a/NzbDrone.Core/Providers/DecisionEngine/RetentionSpecification.cs b/NzbDrone.Core/Providers/DecisionEngine/RetentionSpecification.cs
index 58a86651d..730af0397 100644
--- a/NzbDrone.Core/Providers/DecisionEngine/RetentionSpecification.cs
+++ b/NzbDrone.Core/Providers/DecisionEngine/RetentionSpecification.cs
@@ -1,5 +1,6 @@
 using System.Linq;
 using NLog;
+using Ninject;
 using NzbDrone.Core.Model;
 using NzbDrone.Core.Providers.Core;
 
@@ -10,6 +11,7 @@ public class RetentionSpecification
         private readonly ConfigProvider _configProvider;
         private static readonly Logger logger = LogManager.GetCurrentClassLogger();
 
+        [Inject]
         public RetentionSpecification(ConfigProvider configProvider)
         {
             _configProvider = configProvider;