diff --git a/exercises/move_semantics/move_semantics2.cairo b/exercises/move_semantics/move_semantics2.cairo
index 8a43a3d5f..527410c10 100644
--- a/exercises/move_semantics/move_semantics2.cairo
+++ b/exercises/move_semantics/move_semantics2.cairo
@@ -5,6 +5,7 @@
 fn main() {
     let arr0 = array![];
 
+    // Do not change the following line!
     let mut _arr1 = fill_arr(arr0);
 
     // Do not change the following line!