diff --git a/Octokit.Tests.Integration/Clients/ReferencesClientTests.cs b/Octokit.Tests.Integration/Clients/ReferencesClientTests.cs
index 64425a53..8b4ee97c 100644
--- a/Octokit.Tests.Integration/Clients/ReferencesClientTests.cs
+++ b/Octokit.Tests.Integration/Clients/ReferencesClientTests.cs
@@ -55,14 +55,14 @@ public class ReferencesClientTests : IDisposable
         Assert.NotEmpty(list);
     }
 
-    [IntegrationTest(Skip="See ")]
+    [IntegrationTest(Skip = "See https://github.com/octokit/octokit.net/issues/242 for making this test pass")]
     public async Task CanGetErrorForInvalidNamespace()
     {
         await AssertEx.Throws<Exception>(
             async () => { await _fixture.GetAllForSubNamespace("octokit", "octokit.net", "666"); });
     }
 
-    [IntegrationTest(Skip = "Investigating a 'Server Error' API response when creating a commit")]
+    [IntegrationTest]
     public async Task CanCreateAReference()
     {
         var blob = new NewBlob
diff --git a/Octokit.Tests.Integration/Clients/TreeClientTests.cs b/Octokit.Tests.Integration/Clients/TreeClientTests.cs
index 1c18a4d3..9017778c 100644
--- a/Octokit.Tests.Integration/Clients/TreeClientTests.cs
+++ b/Octokit.Tests.Integration/Clients/TreeClientTests.cs
@@ -41,7 +41,8 @@ public class TreeClientTests : IDisposable
         {
             Type = TreeType.Blob,
             Path = "README.md",
-            Sha = createdBlob.Sha
+            Sha = createdBlob.Sha,
+            Mode = FileMode.File
         });
 
         var result = await _fixture.Create(_owner, _repository.Name, newTree);
@@ -74,7 +75,8 @@ public class TreeClientTests : IDisposable
         {
             Type = TreeType.Blob,
             Path = "README.md",
-            Sha = blobResult.Sha
+            Sha = blobResult.Sha,
+            Mode = FileMode.File
         });
 
         var tree = await _fixture.Create(_owner, _repository.Name, newTree);