diff --git a/csharp/test/Microsoft.ML.OnnxRuntime.Tests/Microsoft.ML.OnnxRuntime.Tests.csproj b/csharp/test/Microsoft.ML.OnnxRuntime.Tests/Microsoft.ML.OnnxRuntime.Tests.csproj
index 91aeb780e9..eaffa2709a 100644
--- a/csharp/test/Microsoft.ML.OnnxRuntime.Tests/Microsoft.ML.OnnxRuntime.Tests.csproj
+++ b/csharp/test/Microsoft.ML.OnnxRuntime.Tests/Microsoft.ML.OnnxRuntime.Tests.csproj
@@ -4,7 +4,7 @@
     <TargetFramework>netcoreapp2.0</TargetFramework>
     <IsPackable>false</IsPackable>
     <OnnxRuntimeCsharpRoot>..\..</OnnxRuntimeCsharpRoot>
-    <Platform>x64</Platform>
+    <Platform>AnyCPU</Platform>
     <buildDirectory Condition="'$(buildDirectory)'==''">$(OnnxRuntimeCsharpRoot)\..\build\Windows</buildDirectory>
     <NativeBuildOutputDir>$(buildDirectory)\$(Configuration)\$(Configuration)</NativeBuildOutputDir>
   </PropertyGroup>