diff --git a/TMDbLib/Client/TMDbClientCollections.cs b/TMDbLib/Client/TMDbClientCollections.cs
index b5932b0..be3268a 100644
--- a/TMDbLib/Client/TMDbClientCollections.cs
+++ b/TMDbLib/Client/TMDbClientCollections.cs
@@ -14,10 +14,10 @@ namespace TMDbLib.Client
     {
         public async Task<Collection> GetCollectionAsync(int collectionId, CollectionMethods extraMethods = CollectionMethods.Undefined, CancellationToken cancellationToken = default(CancellationToken))
         {
-            return await GetCollectionAsync(collectionId, DefaultLanguage, extraMethods, cancellationToken).ConfigureAwait(false);
+            return await GetCollectionAsync(collectionId, DefaultLanguage, null, extraMethods, cancellationToken).ConfigureAwait(false);
         }
 
-        public async Task<Collection> GetCollectionAsync(int collectionId, string language, CollectionMethods extraMethods = CollectionMethods.Undefined, CancellationToken cancellationToken = default(CancellationToken))
+        public async Task<Collection> GetCollectionAsync(int collectionId, string language, string includeImageLanguages, CollectionMethods extraMethods = CollectionMethods.Undefined, CancellationToken cancellationToken = default(CancellationToken))
         {
             RestRequest req = _client.Create("collection/{collectionId}");
             req.AddUrlSegment("collectionId", collectionId.ToString());
@@ -26,6 +26,10 @@ namespace TMDbLib.Client
             if (!string.IsNullOrWhiteSpace(language))
                 req.AddParameter("language", language);
 
+            includeImageLanguages = includeImageLanguages ?? DefaultImageLanguage;
+            if (!string.IsNullOrWhiteSpace(includeImageLanguages))
+                req.AddParameter("include_image_language", includeImageLanguages);
+
             string appends = string.Join(",",
                                          Enum.GetValues(typeof(CollectionMethods))
                                              .OfType<CollectionMethods>()