diff --git a/ft_memcpy.c b/ft_memcpy.c
index 4b3eb34..160e27c 100644
--- a/ft_memcpy.c
+++ b/ft_memcpy.c
@@ -17,7 +17,7 @@ void	*ft_memcpy(void *dest, const void *src, size_t n)
 {
 	size_t	i;
 
-	if ((dest == NULL || src == NULL) && n > 0)
+	if ((dest == NULL && src == NULL) && n > 0)
 		return (dest);
 	i = 0;
 	while (i < n)
diff --git a/ft_memmove.c b/ft_memmove.c
index 8be0b60..e0d6686 100644
--- a/ft_memmove.c
+++ b/ft_memmove.c
@@ -30,7 +30,7 @@ void	*ft_memmove(void *dest, const void *src, size_t n)
 {
 	size_t	i;
 
-	if ((dest == NULL || src == NULL) && n > 0)
+	if ((dest == NULL && src == NULL) && n > 0)
 		return (dest);
 	if (dest >= src && dest <= (src + n))
 	{