diff --git a/flags/flag.c b/flags/flag.c
index 83c2ba3..7bf2bf9 100644
--- a/flags/flag.c
+++ b/flags/flag.c
@@ -16,23 +16,27 @@
 
 static int	verif_arg(char *argv)
 {
-	int	i;
+	int		len;
+	int		verif;
+	char	**split;
 
-	i = 0;
-	while (argv[i])
-	{
-		if (argv[i] == ' ')
-			return (1);
-		i++;
-	}
-	return (0);
+	split = ft_split(argv, ' ');
+	if (!split)
+		return (-1);
+	len = len_split(split);
+	if (len > 1)
+		verif = 1;
+	else
+		verif = 0;
+	free_tab(split);
+	return (verif);
 }
 
 int	calcul_mod(int argc, char **argv)
 {
 	int	mod;
 
-	if (!verif_arg(argv[argc -1]))
+	if (verif_arg(argv[argc -1]) == 0)
 	{
 		if (ft_strncmp("--", argv[1], 2) && ft_strncmp("--", argv[2], 2))
 			mod = 2;
@@ -41,7 +45,7 @@ int	calcul_mod(int argc, char **argv)
 		else
 			mod = 0;
 	}
-	else
+	else if (verif_arg(argv[argc -1]) == 1)
 	{
 		if (ft_strncmp("--", argv[1], 2) && ft_strncmp("--", argv[2], 2))
 			mod = 5;
@@ -50,6 +54,8 @@ int	calcul_mod(int argc, char **argv)
 		else
 			mod = 3;
 	}
+	else
+		mod = -1;
 	return (mod);
 }
 
diff --git a/parsing/parsing.c b/parsing/parsing.c
index e83d8e9..d50f84a 100644
--- a/parsing/parsing.c
+++ b/parsing/parsing.c
@@ -64,6 +64,11 @@ static t_stack	*special_parsing(char **argv, int mod)
 		return (NULL);
 	len = len_split(split_tab);
 	a = parsing(len, split_tab, mod);
+	if (!a)
+	{
+		free_tab(split_tab);
+		return (NULL);
+	}
 	free_tab(split_tab);
 	return (a);
 }
@@ -101,6 +106,11 @@ t_stacks	*init_piles(int argc, char **argv, int mod)
 		a = parsing(argc, argv, mod);
 	else
 		a = special_parsing(argv, mod);
+	if (!a)
+	{
+		free(stacks);
+		return (NULL);
+	}
 	stacks->a = a;
 	return (stacks);
 }
diff --git a/test_one.c b/test_one.c
index 3b73465..1cfc18f 100644
--- a/test_one.c
+++ b/test_one.c
@@ -24,7 +24,11 @@ int	test1(int argc, char **argv)
 
 	piles = NULL;
 	mod = calcul_mod(argc, argv);
+	if (mod == -1)
+		return (0);
 	piles = init_piles(argc, argv, mod);
+	if (!piles)
+		return (0);
 	if (check_order(piles->a))
 		return (0);
 	flags(pos_flag(argv, mod), pos_bench(argv, mod), argv, piles);