diff --git a/.github/workflows/generate-and-build-sdks.yml b/.github/workflows/generate-and-build-sdks.yml
index 39645cf68bf..53a9b8452cb 100644
--- a/.github/workflows/generate-and-build-sdks.yml
+++ b/.github/workflows/generate-and-build-sdks.yml
@@ -168,6 +168,7 @@ jobs:
         run: |
           dotnet test source/XenServerTest `
           --disable-build-servers `
+          -p:DefineConstants=BUILD_FOR_TEST `
           --verbosity=normal
 
       - name: Build C# SDK
diff --git a/ocaml/sdk-gen/csharp/autogen/src/Converters.cs b/ocaml/sdk-gen/csharp/autogen/src/Converters.cs
index 6f828fdc0a6..7811cb00817 100644
--- a/ocaml/sdk-gen/csharp/autogen/src/Converters.cs
+++ b/ocaml/sdk-gen/csharp/autogen/src/Converters.cs
@@ -36,7 +36,9 @@
 using Newtonsoft.Json.Converters;
 using Newtonsoft.Json.Linq;
 
+#if BUILD_FOR_TEST
 [assembly: InternalsVisibleTo("XenServerTest")]
+#endif
 
 namespace XenAPI
 {