1 files changed, 10 insertions, 0 deletions
diff --git a/MediaBrowser.Model/Entities/IHasProviderIds.cs b/MediaBrowser.Model/Entities/IHasProviderIds.cs
index 2ddf8ffad..1c54455da 100644
--- a/MediaBrowser.Model/Entities/IHasProviderIds.cs
+++ b/MediaBrowser.Model/Entities/IHasProviderIds.cs
@@ -39,6 +39,11 @@ namespace MediaBrowser.Model.Entities
         /// <returns>System.String.</returns>
         public static string GetProviderId(this IHasProviderIds instance, string name)
         {
+            if (instance == null)
+            {
+                throw new ArgumentNullException("instance");
+            }
+
             if (instance.ProviderIds == null)
             {
                 return null;
@@ -57,6 +62,11 @@ namespace MediaBrowser.Model.Entities
         /// <param name="value">The value.</param>
         public static void SetProviderId(this IHasProviderIds instance, string name, string value)
         {
+            if (instance == null)
+            {
+                throw new ArgumentNullException("instance");
+            }
+            
             // If it's null remove the key from the dictionary
             if (string.IsNullOrEmpty(value))
             {