diff --git a/test/Forest.Tests/Forest.Tests.csproj b/test/Forest.Tests/Forest.Tests.csproj
index 6b4ba21..93f107f 100755
--- a/test/Forest.Tests/Forest.Tests.csproj
+++ b/test/Forest.Tests/Forest.Tests.csproj
@@ -97,4 +97,8 @@
         <ProjectReference Include="..\..\src\AElf.Boilerplate.TestBase\AElf.Boilerplate.TestBase.csproj" />
     </ItemGroup>
 
+    <ItemGroup>
+      <Folder Include="Protobuf\Proto\reference\" />
+    </ItemGroup>
+
 </Project>
\ No newline at end of file