diff --git a/Octokit.Tests/Clients/OrganizationsClientTests.cs b/Octokit.Tests/Clients/OrganizationsClientTests.cs
index 26d023e7..206a04f6 100644
--- a/Octokit.Tests/Clients/OrganizationsClientTests.cs
+++ b/Octokit.Tests/Clients/OrganizationsClientTests.cs
@@ -87,7 +87,7 @@ namespace Octokit.Tests.Clients
                 var client = Substitute.For<IApiConnection>();
                 var orgs = new OrganizationsClient(client);
 
-                orgs.Update(new OrganizationUpdate { Name = "initrode" });
+                orgs.Update("initrode", new OrganizationUpdate());
 
                 client.Received().Patch<Organization>(Arg.Is<Uri>(u => u.ToString() == "orgs/initrode"), Args.OrganizationUpdate);
             }
diff --git a/Octokit/Clients/IOrganizationsClient.cs b/Octokit/Clients/IOrganizationsClient.cs
index 13794cd0..2241ba54 100644
--- a/Octokit/Clients/IOrganizationsClient.cs
+++ b/Octokit/Clients/IOrganizationsClient.cs
@@ -51,11 +51,12 @@ namespace Octokit
         Task<IReadOnlyList<Organization>> GetAll(string user);
 
         /// <summary>
-        /// Update the specified <see cref="OrganizationUpdate"/>.
+        /// Update the specified organization with data from <see cref="OrganizationUpdate"/>.
         /// </summary>
-        /// <param name="organization"></param>
+        /// <param name="organizationName">The name of the organization to update.</param>
+        /// <param name="updateRequest"></param>
         /// <exception cref="AuthorizationException">Thrown if the client is not authenticated.</exception>
         /// <returns>A <see cref="Organization"/></returns>
-        Task<Organization> Update(OrganizationUpdate organization);
+        Task<Organization> Update(string organizationName, OrganizationUpdate updateRequest);
     }
 }
diff --git a/Octokit/Clients/OrganizationsClient.cs b/Octokit/Clients/OrganizationsClient.cs
index 2040c3e8..6f57c180 100644
--- a/Octokit/Clients/OrganizationsClient.cs
+++ b/Octokit/Clients/OrganizationsClient.cs
@@ -71,19 +71,20 @@ namespace Octokit
         }
 
         /// <summary>
-        /// Update the specified <see cref="OrganizationUpdate"/>.
+        /// Update the specified organization with data from <see cref="OrganizationUpdate"/>.
         /// </summary>
-        /// <param name="organization"></param>
+        /// <param name="organizationName">The name of the organization to update.</param>
+        /// <param name="updateRequest"></param>
         /// <exception cref="AuthorizationException">Thrown if the client is not authenticated.</exception>
         /// <returns>A <see cref="Organization"/></returns>
-        public Task<Organization> Update(OrganizationUpdate organization)
+        public Task<Organization> Update(string organizationName, OrganizationUpdate updateRequest)
         {
-            Ensure.ArgumentNotNull(organization, "organization");
-            Ensure.ArgumentNotNullOrEmptyString(organization.Name, "organization");
+            Ensure.ArgumentNotNullOrEmptyString(organizationName, "organizationName");
+            Ensure.ArgumentNotNull(updateRequest, "updateRequest");
 
-            var updateUri = new Uri("orgs/" + organization.Name, UriKind.Relative);
+            var updateUri = new Uri("orgs/" + organizationName, UriKind.Relative);
 
-            return ApiConnection.Patch<Organization>(updateUri, organization);
+            return ApiConnection.Patch<Organization>(updateUri, updateRequest);
         }
     }
 }