diff --git a/Source/Engine/Scripting/ScriptingObject.cpp b/Source/Engine/Scripting/ScriptingObject.cpp
index 59ac26484..2f0570658 100644
--- a/Source/Engine/Scripting/ScriptingObject.cpp
+++ b/Source/Engine/Scripting/ScriptingObject.cpp
@@ -433,7 +433,7 @@ bool ScriptingObject::CanCast(const MClass* from, const MClass* to)
         return true;
     CHECK_RETURN(from && to, false);
 
-#if PLATFORM_LINUX || PLATFORM_MAC
+#if DOTNET_HOST_MONO
     // Cannot enter GC unsafe region if the thread is not attached
     MCore::Thread::Attach();
 #endif