diff --git a/srcs/exec/pipeline.c b/srcs/exec/pipeline.c
index e8d61d2..150a4ca 100644
--- a/srcs/exec/pipeline.c
+++ b/srcs/exec/pipeline.c
@@ -6,7 +6,7 @@
 /*   By: lperrey <lperrey@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2021/11/16 01:57:38 by lperrey           #+#    #+#             */
-/*   Updated: 2021/12/11 05:24:07 by lperrey          ###   ########.fr       */
+/*   Updated: 2021/12/16 15:55:36 by lperrey          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -73,7 +73,7 @@ static int	pipeline_find_access(t_cmd *pipeline[], char *path[])
 	i = 0;
 	while (pipeline[i])
 	{
-		if (!pipeline[i]->error)
+		if (!pipeline[i]->error && pipeline[i]->argv[0])
 		{
 			if (!cmd_find_access(pipeline[i], path))
 				return (0);
@@ -91,7 +91,7 @@ static pid_t	pipeline_exec(t_cmd *pipeline[], t_all *c)
 	i = 0;
 	while (pipeline[i])
 	{
-		if (!pipeline[i]->error)
+		if (!pipeline[i]->error && pipeline[i]->argv[0])
 		{
 			ret = cmd_exec_in_subshell(pipeline[i], c);
 			if (ret != EXIT_SUCCESS)
diff --git a/srcs/parsing/parsing.c b/srcs/parsing/parsing.c
index 3a9755e..eb9df80 100644
--- a/srcs/parsing/parsing.c
+++ b/srcs/parsing/parsing.c
@@ -6,7 +6,7 @@
 /*   By: lperrey <lperrey@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2021/10/24 10:52:40 by lperrey           #+#    #+#             */
-/*   Updated: 2021/12/16 04:58:12 by lperrey          ###   ########.fr       */
+/*   Updated: 2021/12/16 16:23:09 by lperrey          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -93,6 +93,7 @@ command          : cmd_prefix cmd_name cmd_suffix
                  | cmd_prefix cmd_name
                  | cmd_name cmd_suffix
                  | cmd_name
+				 | cmd_prefix
                  ;
 cmd_name         : WORD                   // Apply rule 7a
                  ;
diff --git a/srcs/parsing/valid_syntax/valid_command.c b/srcs/parsing/valid_syntax/valid_command.c
index eafb625..cee3bc5 100644
--- a/srcs/parsing/valid_syntax/valid_command.c
+++ b/srcs/parsing/valid_syntax/valid_command.c
@@ -6,7 +6,7 @@
 /*   By: lperrey <lperrey@student.42.fr>            +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2021/10/24 18:52:05 by lperrey           #+#    #+#             */
-/*   Updated: 2021/10/24 19:21:28 by lperrey          ###   ########.fr       */
+/*   Updated: 2021/12/17 03:14:06 by lperrey          ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -18,6 +18,7 @@ static int	valid_command_rule1(t_token **token_list);
 static int	valid_command_rule2(t_token **token_list);
 static int	valid_command_rule3(t_token **token_list);
 static int	valid_command_rule4(t_token **token_list);
+static int	valid_command_rule5(t_token **token_list);
 
 int	valid_command(t_token **token_list)
 {
@@ -35,6 +36,9 @@ int	valid_command(t_token **token_list)
 	*token_list = cmd_start;
 	if (valid_command_rule4(token_list))
 		return (1);
+	*token_list = cmd_start;
+	if (valid_command_rule5(token_list))
+		return (1);
 	return (0);
 }
 
@@ -94,3 +98,14 @@ static int	valid_command_rule4(t_token **token_list)
 	}
 	return (0);
 }
+
+// cmd_prefix
+static int	valid_command_rule5(t_token **token_list)
+{
+	while (valid_io_redirect(token_list))
+	{
+		if (valid_command_separator(*token_list))
+			return (1);
+	}
+	return (0);
+}