diff --git a/csharp/test/Microsoft.ML.OnnxRuntime.EndToEndTests/Microsoft.ML.OnnxRuntime.EndToEndTests.csproj b/csharp/test/Microsoft.ML.OnnxRuntime.EndToEndTests/Microsoft.ML.OnnxRuntime.EndToEndTests.csproj
index 67f29664ae..613d78b615 100644
--- a/csharp/test/Microsoft.ML.OnnxRuntime.EndToEndTests/Microsoft.ML.OnnxRuntime.EndToEndTests.csproj
+++ b/csharp/test/Microsoft.ML.OnnxRuntime.EndToEndTests/Microsoft.ML.OnnxRuntime.EndToEndTests.csproj
@@ -26,6 +26,11 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
       <Visible>false</Visible>
     </None>
+    <None Include="$(OnnxRuntimeCSharpRoot)\..\onnxruntime\test\testdata\overridable_initializer.onnx">
+      <CopyToOutputDirectory>Always</CopyToOutputDirectory>
+      <Visible>false</Visible>
+    </None>
+
     <BuildEnvVars Include="OnnxRuntimeBuildDirectory=$(OnnxRuntimeBuildDirectory)" />
   </ItemGroup>
   <Target Name="DefineBuildEnvironmentVariables" BeforeTargets="Build">