diff --git a/Makefile b/Makefile
index 3e4bdf2..e9198aa 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@
 #    By: apommier <apommier@student.42.fr>          +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2022/03/06 12:50:24 by apommier          #+#    #+#              #
-#    Updated: 2022/04/12 23:31:57 by apommier         ###   ########.fr        #
+#    Updated: 2022/04/15 05:49:45 by apommier         ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -36,7 +36,6 @@ OBJS	= ${SRCS:.c=.o}
 CC		= clang
 CFLAGS	= -Wall -Wextra -g
 LIB		= -lreadline
-#CFLAGS	= -Wall -Wextra -Werror
 RM		= rm -rf
 LIBFT	= ./libft
 
diff --git a/srcs/main.c b/srcs/main.c
index d49641c..ccef73f 100644
--- a/srcs/main.c
+++ b/srcs/main.c
@@ -6,7 +6,7 @@
 /*   By: apommier <apommier@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/03/06 13:27:11 by apommier          #+#    #+#             */
-/*   Updated: 2022/04/15 00:13:24 by apommier         ###   ########.fr       */
+/*   Updated: 2022/04/15 06:01:07 by apommier         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -81,6 +81,8 @@ void	print_prompt(char **path)
 				free_cmd(cmd);
 				cmd = 0;
 			}
+			else
+				ft_putstr_fd("Minishell: error while parsing command\n", 2);
 		}
 		free(input);
 	}
diff --git a/srcs/pipe/pipe.c b/srcs/pipe/pipe.c
index 1556a6e..cd604ce 100644
--- a/srcs/pipe/pipe.c
+++ b/srcs/pipe/pipe.c
@@ -6,7 +6,7 @@
 /*   By: apommier <apommier@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/04/02 18:51:31 by apommier          #+#    #+#             */
-/*   Updated: 2022/04/15 02:37:34 by apommier         ###   ########.fr       */
+/*   Updated: 2022/04/15 06:29:09 by apommier         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -99,6 +99,8 @@ void    exec_cmd(t_cmd *cmd, char **env, int *fdpipe)
     }
 	else if (!cmd->current_s_cmd->cmd || access(cmd->current_s_cmd->cmd, F_OK))
 		cmd->err_var = 127;
+	else
+		cmd->err_var = 126;
 }
 
 void	execute(t_cmd *cmd, char **env)
diff --git a/srcs/set_cmd/set_cmd.c b/srcs/set_cmd/set_cmd.c
index b785e8e..feeee81 100644
--- a/srcs/set_cmd/set_cmd.c
+++ b/srcs/set_cmd/set_cmd.c
@@ -6,7 +6,7 @@
 /*   By: apommier <apommier@student.42.fr>          +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2022/03/08 15:19:42 by apommier          #+#    #+#             */
-/*   Updated: 2022/04/14 12:32:26 by apommier         ###   ########.fr       */
+/*   Updated: 2022/04/15 06:00:35 by apommier         ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -80,6 +80,25 @@ t_cmd *split_cmd(t_cmd *cmd, char **cmds)
 	return (cmd);
 }
 
+int	is_pipe_good(char *str)
+{
+	int i;
+	char next;
+
+	i = 0;
+	while (str[i])
+	{
+		if (str[i] == '|')
+		{
+			next = next_space(str, i + 1);
+			if (!next || next == '|' || next == '<' || next == '>')
+				return (0);
+		}
+		i++;
+	}
+	return (1);
+}
+
 t_cmd	*set_cmd(char *input, char **env)
 {
 	t_cmd	*cmd;
@@ -87,6 +106,8 @@ t_cmd	*set_cmd(char *input, char **env)
 	
 	if (!is_quote_good(input))
 		return (0);
+	if (!is_pipe_good(input))
+		return (0);
 	cmds = ft_split_with_quote(input, '|');
 	//print_double_fd(cmds, 1);
 	if (!cmds)