diff --git a/cmake/modules/FindDotNetToolchain.cmake b/cmake/modules/FindDotNetToolchain.cmake
index 7f86534c3..6e8cc7610 100644
--- a/cmake/modules/FindDotNetToolchain.cmake
+++ b/cmake/modules/FindDotNetToolchain.cmake
@@ -33,6 +33,11 @@ if (DOTNET_CSC_EXECUTABLE)
       set(DOTNET_TOOLCHAIN_IS_MONO TRUE)
       set(DOTNET_TOOLCHAIN_IS_WINDOWS FALSE)
       message(STATUS ".NET toolchain is Mono")
+    elseif ("${CSC_STD_OUT}" MATCHES "^Turbo[ ]+C#")
+      set(DOTNET_DETERMINED_VENDOR TRUE)
+      set(DOTNET_TOOLCHAIN_IS_MONO TRUE)
+      set(DOTNET_TOOLCHAIN_IS_WINDOWS FALSE)
+      message(STATUS ".NET toolchain is Mono")
     elseif ("${CSC_STD_OUT}" MATCHES "^Microsoft.+Visual[ ]+C#")
       set(DOTNET_DETERMINED_VENDOR TRUE)
       set(DOTNET_TOOLCHAIN_IS_MONO FALSE)