diff --git a/Capy64/LuaRuntime/Sandbox.cs b/Capy64/LuaRuntime/Sandbox.cs
index 6e4d335..44afcfb 100644
--- a/Capy64/LuaRuntime/Sandbox.cs
+++ b/Capy64/LuaRuntime/Sandbox.cs
@@ -228,7 +228,7 @@ internal class Sandbox
 
         L.GetGlobal("load");
         L.PushBuffer(chunk);
-        L.PushString(filename);
+        L.PushString("@" + filename);
 
         var values = 2;