diff --git a/qualdev/TD-Debug.ts b/qualdev/TD-Debug.ts
index faaa6d1e6e58bb4f7c1259c182663e27f1e1bf50..822528007024f6d6bca8d28fa7fab2034871052b 100644
--- a/qualdev/TD-Debug.ts
+++ b/qualdev/TD-Debug.ts
@@ -47,11 +47,12 @@ function deb3(xy: number[]): void {
     xy[0] = xy[1];
     xy[1] = tmp;
     console.log(xy);
+    xy = [100, 200];
   }
   
   let xy = [10, 20];
   deb3(xy);
   console.log(xy);
 
-  
+
   
\ No newline at end of file