diff --git a/includes/ft_printf.h b/includes/ft_printf.h
index 81874d6..6fbcacc 100644
--- a/includes/ft_printf.h
+++ b/includes/ft_printf.h
@@ -26,8 +26,8 @@ typedef struct s_format
 }			t_format;
 
 size_t	ft_strlen(const char *str);
-void	ft_putnbr_base(int fd, u_int64_t nbr, char *base, int *to_ret);
-char	*itoa_base(u_int64_t nbr, char *base);
+void	ft_putnbr_base(int fd, uint64_t nbr, char *base, int *to_ret);
+char	*itoa_base(uint64_t nbr, char *base);
 int		flag_c(va_list args, int fd);
 int		ft_dprintf(int fd, const char *s, ...);
 int		ft_printf(const char *s, ...);
diff --git a/sources/print_number.c b/sources/print_number.c
index 539f346..a1a19a5 100644
--- a/sources/print_number.c
+++ b/sources/print_number.c
@@ -20,7 +20,7 @@ int	flag_p(va_list args, int fd)
 {
 	char		*to_print;
 	int			to_ret;
-	u_int64_t	number;
+	uint64_t	number;
 
 	number = va_arg(args, unsigned long long);
 	to_ret = 0;