diff --git a/app/src/gambas3/.src/Debug/Design.module b/app/src/gambas3/.src/Debug/Design.module
index b3182a56c..cc6fb2211 100644
--- a/app/src/gambas3/.src/Debug/Design.module
+++ b/app/src/gambas3/.src/Debug/Design.module
@@ -1105,7 +1105,7 @@ Private Sub Start(sCmd As String)
   FDebugInfo.UpdateView
   FDebugInfo.OnProjectDebug
 
-  aEnv = Project.GetEnvironment()
+  aEnv = Project.GetEnvironment().Copy()
   If $bRemote Then Try aEnv.Insert(Project.Config["/Debug/RemoteEnvironment"])
   I = 0
   While I < aEnv.Count