diff --git a/libft/includes/btree.h b/libft/includes/btree.h
index ab5b587e..6e6d4215 100644
--- a/libft/includes/btree.h
+++ b/libft/includes/btree.h
@@ -7,12 +7,13 @@ typedef struct s_btree		t_btree;
 
 struct	s_btree
 {
+	void			*item;
+	size_t			content_size;
 	struct s_btree	*left;
 	struct s_btree	*right;
-	void			*item;
 };
 
-t_btree	*btree_create_node(void *item);
+t_btree	*btree_create_node(void const *item, size_t content_size);
 
 void	btree_insert_data(
 		t_btree **root,
diff --git a/libft/src/btree/btree_create_node.c b/libft/src/btree/btree_create_node.c
index b50c4be4..83170a7f 100644
--- a/libft/src/btree/btree_create_node.c
+++ b/libft/src/btree/btree_create_node.c
@@ -12,13 +12,24 @@
 
 #include "btree.h"
 
-t_btree	*btree_create_node(void *item)
+t_btree	*btree_create_node(void const *item, size_t content_size)
 {
 	t_btree	*node;
 
-	node = (t_btree *)malloc(sizeof(t_btree));
+	if (!(node = (t_btree *)malloc(sizeof(t_btree))))
+		return (NULL);
 	node->left = 0;
 	node->right = 0;
-	node->item = item;
 	return (node);
+	if (!content)
+	{
+		new->content_size = 0;
+		new->item = NULL;
+	}
+	else
+	{
+		new->content_size = content_size;
+		new->item = ft_memalloc(content_size + 1);
+		ft_memcpy(new->item, item, content_size);
+	}
 }
diff --git a/libft/src/lst/ft_lstnew.c b/libft/src/lst/ft_lstnew.c
index 1ad8c10a..302aff27 100644
--- a/libft/src/lst/ft_lstnew.c
+++ b/libft/src/lst/ft_lstnew.c
@@ -16,23 +16,19 @@ t_list	*ft_lstnew(void const *content, size_t content_size)
 {
 	t_list	*new;
 
+	if (!(new = (t_list *)malloc(sizeof(*new))))
+		return (NULL);
+	new->next = NULL;
 	if (!content)
 	{
-		new = malloc(sizeof(*new));
-		if (!new)
-			return (NULL);
 		new->content_size = 0;
 		new->content = NULL;
 	}
 	else
 	{
-		new = (t_list *)malloc(sizeof(*new));
-		if (!new)
-			return (NULL);
 		new->content_size = content_size;
 		new->content = ft_memalloc(content_size + 1);
 		ft_memcpy(new->content, content, content_size);
 	}
-	new->next = NULL;
 	return (new);
 }