diff --git a/include/libasm.h b/include/libasm.h
index 6e16d40..83156a5 100644
--- a/include/libasm.h
+++ b/include/libasm.h
@@ -12,4 +12,4 @@ ssize_t ft_write(int fd, const void *buf, size_t count);
 char *ft_strdup(const char *s);
 ssize_t ft_read(int fildes, void *buf, size_t nbyte);
 
-size_t ft_list_size(const t_list *root);
\ No newline at end of file
+int ft_list_size(t_list *begin_list);
\ No newline at end of file