diff --git a/main_bonus.c b/main_bonus.c
index 947ee0e..3a8ab98 100644
--- a/main_bonus.c
+++ b/main_bonus.c
@@ -3,10 +3,10 @@
 /*                                                        :::      ::::::::   */
 /*   main_bonus.c                                       :+:      :+:    :+:   */
 /*                                                    +:+ +:+         +:+     */
-/*   By: thrieg < thrieg@student.42mulhouse.fr>     +#+  +:+       +#+        */
+/*   By: thrieg <thrieg@student.42mulhouse.fr>      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/11/28 17:23:45 by thrieg            #+#    #+#             */
-/*   Updated: 2025/12/08 15:52:17 by thrieg           ###   ########.fr       */
+/*   Updated: 2025/12/13 06:24:05 by thrieg           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -29,7 +29,7 @@ int main(void)
 		c[i] = i * 2;
 
 	write(1, "\n\n\n\n\nafter first alloc: \n\n\n\n\n", sizeof("\n\n\n\n\nafter first alloc: \n\n\n\n\n") - 1);
-	show_alloc_mem_ex(false);
+	show_alloc_mem(false);
 
 	free(a);
 	free(b);
@@ -52,7 +52,7 @@ int main(void)
 	write(1, "\n\n\n\n\nafter allocating again: \n\n\n\n\n", sizeof("\n\n\n\n\nafter allocating again: \n\n\n\n\n") - 1);
 	show_alloc_mem_ex(false);
 
-	a = realloc(a, 420);			   // move the block
+	a = realloc(a, 5200);			   // move the block (use "getconf PAGESIZE" to confirm the rounded-up size logic)
 	c = realloc(c, 504 * sizeof(int)); // expend
 	b = realloc(b, 400);			   // shrink
 
diff --git a/srcs/ft_malloc.c b/srcs/ft_malloc.c
index 1dd395d..607282b 100644
--- a/srcs/ft_malloc.c
+++ b/srcs/ft_malloc.c
@@ -3,10 +3,10 @@
 /*                                                        :::      ::::::::   */
 /*   ft_malloc.c                                        :+:      :+:    :+:   */
 /*                                                    +:+ +:+         +:+     */
-/*   By: thrieg < thrieg@student.42mulhouse.fr>     +#+  +:+       +#+        */
+/*   By: thrieg <thrieg@student.42mulhouse.fr>      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/11/17 15:02:55 by thrieg            #+#    #+#             */
-/*   Updated: 2025/12/08 16:02:22 by thrieg           ###   ########.fr       */
+/*   Updated: 2025/12/13 06:31:39 by thrieg           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -33,7 +33,10 @@ void *malloc(size_t size)
 		ret = add_tiny(size);
 	}
 	pthread_mutex_unlock(&g_mut);
-	if (g_state.patern)
+	if (ret && g_state.patern)
+	{
+		size = (((t_header *)ret) - 1)->size;
 		ft_memset(ret, g_state.patern, size); // doesn't need to lock because we only modify the user pointer and the user doesn't have accces to it yet
+	}
 	return (ret);
 }