diff --git a/src/malloc.c b/src/malloc.c
index 1ac5bcf..d48b053 100644
--- a/src/malloc.c
+++ b/src/malloc.c
@@ -117,6 +117,9 @@ void ft_free(void *ptr)
 	chunk_t chunk;
 	size_t i;
 
+	if (ptr == NULL)
+		return;
+
 	for (i = TINY; i <= LARGE + 1; i++)
 	{
 		if (i > LARGE)