diff --git a/src/ScriptEngine/Machine/RuntimeScopes.cs b/src/ScriptEngine/Machine/RuntimeScopes.cs
index b1e175d0f..88888251b 100644
--- a/src/ScriptEngine/Machine/RuntimeScopes.cs
+++ b/src/ScriptEngine/Machine/RuntimeScopes.cs
@@ -8,6 +8,7 @@ This Source Code Form is subject to the terms of the
 using System;
 using System.Collections;
 using System.Collections.Generic;
+using System.Linq;
 using OneScript.Contexts;
 
 namespace ScriptEngine.Machine
@@ -24,7 +25,7 @@ public class RuntimeScopes : IReadOnlyList<AttachedContext>
 
         public RuntimeScopes(IReadOnlyList<AttachedContext> outerScopes, AttachedContext innerScope)
         {
-            _outerScopes = outerScopes;
+            _outerScopes = outerScopes.Select(x => new AttachedContext(x.Instance)).ToList();
             _innerScope = innerScope;
 
             _outerScopeLast = _outerScopes.Count - 1;