diff --git a/parsing.c b/parsing.c
index 773fd55..558c027 100644
--- a/parsing.c
+++ b/parsing.c
@@ -44,5 +44,7 @@ bool	parsing(t_data *data, char **args, size_t n)
 		return (1);
 	}
 	set_value(data, args, n);
-	return (0);
+	if (data->nb_philos > 1)
+		write(2, "Argument error !\n", 16);
+	return (data->nb_philos > 1);
 }