diff --git a/esercizio_stack.asm b/esercizio_stack.asm
index 95ea03c..f33b9b3 100644
--- a/esercizio_stack.asm
+++ b/esercizio_stack.asm
@@ -6,6 +6,7 @@ fill_memory:
     push bc
     ld hl, 200h
     ld c, 01h
+    ld b, 4h
     ld a, c
 loop_fill:
     ld (hl), a