diff --git a/Octokit.Tests/Reactive/ObservableUserAdministrationClientTests.cs b/Octokit.Tests/Reactive/ObservableUserAdministrationClientTests.cs
index 682a09b6..d6a1fab9 100644
--- a/Octokit.Tests/Reactive/ObservableUserAdministrationClientTests.cs
+++ b/Octokit.Tests/Reactive/ObservableUserAdministrationClientTests.cs
@@ -50,7 +50,7 @@ namespace Octokit.Tests.Reactive
                 var gitHubClient = Substitute.For<IGitHubClient>();
                 var client = new ObservableUserAdministrationClient(gitHubClient);
 
-                client.CreateImpersonationToken("auser", new NewImpersonationToken(new string[] { "public_repo" }));
+                client.CreateImpersonationToken("auser", new NewImpersonationToken(new[] { "public_repo" }));
 
                 gitHubClient.User.Administration.Received().CreateImpersonationToken(
                     "auser",