diff --git a/Octokit.Tests/OctoKit.Tests-NetCore45.csproj b/Octokit.Tests/OctoKit.Tests-NetCore45.csproj
index 304e2083..b996bab8 100644
--- a/Octokit.Tests/OctoKit.Tests-NetCore45.csproj
+++ b/Octokit.Tests/OctoKit.Tests-NetCore45.csproj
@@ -126,6 +126,7 @@
     <Compile Include="Models\DeploymentStatusTests.cs" />
     <Compile Include="Models\DeploymentTests.cs" />
     <Compile Include="Models\GistTests.cs" />
+    <Compile Include="Models\IssueEventTests.cs" />
     <Compile Include="Models\IssueRequestTests.cs" />
     <Compile Include="Models\IssueTest.cs" />
     <Compile Include="Models\MilestoneRequestTests.cs" />