diff --git a/StubLib/Stub.cs b/StubLib/Stub.cs
index a20ea10..9005521 100644
--- a/StubLib/Stub.cs
+++ b/StubLib/Stub.cs
@@ -8,7 +8,7 @@ namespace StubLib
     public class Stub : IPersistanceManager
     {
 
-        List<Requin> requins = new List<Requin>();
+        private List<Requin> requins = new List<Requin>();
 
         public Stub()
         {
@@ -20,7 +20,7 @@ namespace StubLib
 
         public IEnumerable<Requin> LoadRequins()
         {
-            return requins;
+            return new List<Requin>(requins);
         }
 
         public void SaveRequins(List<Requin> reqs)