diff --git a/Octokit.Reactive/Clients/IObservableRepositoryContentsClient.cs b/Octokit.Reactive/Clients/IObservableRepositoryContentsClient.cs
index ed132889..a5221a6b 100644
--- a/Octokit.Reactive/Clients/IObservableRepositoryContentsClient.cs
+++ b/Octokit.Reactive/Clients/IObservableRepositoryContentsClient.cs
@@ -43,6 +43,7 @@ namespace Octokit.Reactive
         /// <remarks>https://developer.github.com/v3/repos/contents/#get-archive-link</remarks>
         /// <param name="owner">The owner of the repository</param>
         /// <param name="name">The name of the repository</param>
+        /// <returns>A promise, containing the binary contents of the archive</returns>
         IObservable<byte[]> GetArchive(string owner, string name);
 
         /// <summary>
@@ -66,7 +67,7 @@ namespace Octokit.Reactive
         /// <param name="owner">The owner of the repository</param>
         /// <param name="name">The name of the repository</param>
         /// <param name="archiveFormat">The format of the archive. Can be either tarball or zipball</param>
-        /// <returns></returns>
+        /// <returns>A promise, containing the binary contents of the archive</returns>
         IObservable<byte[]> GetArchive(string owner, string name, ArchiveFormat archiveFormat);
 
         /// <summary>
@@ -92,6 +93,7 @@ namespace Octokit.Reactive
         /// <param name="name">The name of the repository</param>
         /// <param name="archiveFormat">The format of the archive. Can be either tarball or zipball</param>
         /// <param name="reference">A valid Git reference.</param>
+        /// <returns>A promise, containing the binary contents of the archive</returns>
         IObservable<byte[]> GetArchive(string owner, string name, ArchiveFormat archiveFormat, string reference);
 
         /// <summary>
diff --git a/Octokit.Reactive/Clients/ObservableRepositoryContentsClient.cs b/Octokit.Reactive/Clients/ObservableRepositoryContentsClient.cs
index 8c7dde33..a4a5e4b2 100644
--- a/Octokit.Reactive/Clients/ObservableRepositoryContentsClient.cs
+++ b/Octokit.Reactive/Clients/ObservableRepositoryContentsClient.cs
@@ -71,6 +71,7 @@ namespace Octokit.Reactive
         /// <remarks>https://developer.github.com/v3/repos/contents/#get-archive-link</remarks>
         /// <param name="owner">The owner of the repository</param>
         /// <param name="name">The name of the repository</param>
+        /// <returns>A promise, containing the binary contents of the archive</returns>
         public IObservable<byte[]> GetArchive(string owner, string name)
         {
             return _client.Repository.Content.GetArchive(owner, name).ToObservable();
@@ -100,7 +101,7 @@ namespace Octokit.Reactive
         /// <param name="owner">The owner of the repository</param>
         /// <param name="name">The name of the repository</param>
         /// <param name="archiveFormat">The format of the archive. Can be either tarball or zipball</param>
-        /// <returns></returns>
+        /// <returns>A promise, containing the binary contents of the archive</returns>
         public IObservable<byte[]> GetArchive(string owner, string name, ArchiveFormat archiveFormat)
         {
             return _client.Repository.Content.GetArchive(owner, name, archiveFormat).ToObservable();
@@ -135,6 +136,7 @@ namespace Octokit.Reactive
         /// <param name="name">The name of the repository</param>
         /// <param name="archiveFormat">The format of the archive. Can be either tarball or zipball</param>
         /// <param name="reference">A valid Git reference.</param>
+        /// <returns>A promise, containing the binary contents of the archive</returns>
         public IObservable<byte[]> GetArchive(string owner, string name, ArchiveFormat archiveFormat, string reference)
         {
             return _client.Repository.Content.GetArchive(owner, name, archiveFormat, reference).ToObservable();
diff --git a/Octokit/Clients/RepositoryContentsClient.cs b/Octokit/Clients/RepositoryContentsClient.cs
index ae252ebb..5f866caf 100644
--- a/Octokit/Clients/RepositoryContentsClient.cs
+++ b/Octokit/Clients/RepositoryContentsClient.cs
@@ -95,7 +95,7 @@ namespace Octokit
         /// <remarks>https://developer.github.com/v3/repos/contents/#get-archive-link</remarks>
         /// <param name="owner">The owner of the repository</param>
         /// <param name="name">The name of the repository</param>
-        /// <returns></returns>
+        /// <returns>The binary contents of the archive</returns>
         public Task<byte[]> GetArchive(string owner, string name)
         {
             return GetArchive(owner, name, ArchiveFormat.Tarball, string.Empty);
@@ -124,7 +124,7 @@ namespace Octokit
         /// <param name="owner">The owner of the repository</param>
         /// <param name="name">The name of the repository</param>
         /// <param name="archiveFormat">The format of the archive. Can be either tarball or zipball</param>
-        /// <returns></returns>
+        /// <returns>The binary contents of the archive</returns>
         public Task<byte[]> GetArchive(string owner, string name, ArchiveFormat archiveFormat)
         {
             return GetArchive(owner, name, archiveFormat, string.Empty);
@@ -158,7 +158,7 @@ namespace Octokit
         /// <param name="name">The name of the repository</param>
         /// <param name="archiveFormat">The format of the archive. Can be either tarball or zipball</param>
         /// <param name="reference">A valid Git reference.</param>
-        /// <returns></returns>
+        /// <returns>The binary contents of the archive</returns>
         public async Task<byte[]> GetArchive(string owner, string name, ArchiveFormat archiveFormat, string reference)
         {
             Ensure.ArgumentNotNullOrEmptyString(owner, "owner");