diff --git a/src/executing/group_cmd/group_cmd_execute.c b/src/executing/group_cmd/group_cmd_execute.c
index 9b2a69f..7c537fe 100644
--- a/src/executing/group_cmd/group_cmd_execute.c
+++ b/src/executing/group_cmd/group_cmd_execute.c
@@ -6,7 +6,7 @@
 /*   By: kcolin <kcolin@42.fr>                      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/04/04 19:50:42 by kcolin            #+#    #+#             */
-/*   Updated: 2025/04/29 15:11:00 by kcolin           ###   ########.fr       */
+/*   Updated: 2025/04/30 14:06:24 by kcolin           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -16,6 +16,7 @@
 #include "../simple_cmd/handle_redirections.h"
 #include "../simple_cmd/std_fds.h"
 #include <unistd.h>
+#include <stdio.h>
 
 t_subprocess	group_cmd_execute(t_group_cmd *cmd, t_minishell *app)
 {
@@ -30,6 +31,12 @@ t_subprocess	group_cmd_execute(t_group_cmd *cmd, t_minishell *app)
 		restore_std_fds(&fds);
 		return (SUBPROCESS);
 	}
+	if (pid < 0)
+	{
+		perror("minishell: fork");
+		app->last_return_value = 255;
+		return (PARENTPROCESS);
+	}
 	do_waitpid(app, pid);
 	return (PARENTPROCESS);
 }
diff --git a/src/executing/simple_cmd/simple_cmd_execute.c b/src/executing/simple_cmd/simple_cmd_execute.c
index 2118220..5e1f4a3 100644
--- a/src/executing/simple_cmd/simple_cmd_execute.c
+++ b/src/executing/simple_cmd/simple_cmd_execute.c
@@ -6,7 +6,7 @@
 /*   By: kcolin <kcolin@42.fr>                      +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2025/03/27 16:21:56 by kcolin            #+#    #+#             */
-/*   Updated: 2025/04/29 15:47:27 by kcolin           ###   ########.fr       */
+/*   Updated: 2025/04/30 14:05:26 by kcolin           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -72,6 +72,13 @@ static t_simple_cmd	*post_process_command(t_simple_cmd *cmd, t_minishell *app)
 	return (cmd);
 }
 
+static t_subprocess	fork_fail(t_minishell *app)
+{
+	perror("minishell: fork");
+	app->last_return_value = 255;
+	return (PARENTPROCESS);
+}
+
 static t_subprocess	exec_external_cmd(t_simple_cmd *cmd, t_minishell *app,
 	t_std_fds *fds)
 {
@@ -87,6 +94,8 @@ static t_subprocess	exec_external_cmd(t_simple_cmd *cmd, t_minishell *app,
 		if (pid == 0)
 			return (execute_subprocess(exe, cmd, app, fds));
 		free(exe);
+		if (pid < 0)
+			return (fork_fail(app));
 		do_waitpid(app, pid);
 	}
 	restore_std_fds(fds);