diff --git a/Makefile b/Makefile
index 66af7c3..dac1df4 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@
 #    By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2023/11/01 11:03:22 by adjoly            #+#    #+#              #
-#    Updated: 2023/11/03 19:10:18 by adjoly           ###   ########.fr        #
+#    Updated: 2023/11/03 23:05:37 by adjoly           ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -23,6 +23,7 @@ SRCS = ft_atoi.c \
 		ft_putchar_fd.c \
 		ft_putnbr_fd.c \
 		ft_putstr_fd.c \
+		ft_strdup.c \
 		ft_memcpy.c \
 		ft_memset.c \
 		ft_strlcpy.c \
diff --git a/ft_atoi.o b/ft_atoi.o
new file mode 100644
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diff --git a/ft_bzero.o b/ft_bzero.o
new file mode 100644
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diff --git a/ft_isalnum.o b/ft_isalnum.o
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index 0000000..4d4eaf4
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diff --git a/ft_isalpha.o b/ft_isalpha.o
new file mode 100644
index 0000000..6daee9a
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diff --git a/ft_isascii.o b/ft_isascii.o
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index 0000000..57e0977
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diff --git a/ft_isdigit.o b/ft_isdigit.o
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index 0000000..1e7eb73
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diff --git a/ft_memcpy.o b/ft_memcpy.o
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index 0000000..50a0c4e
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diff --git a/ft_memset.o b/ft_memset.o
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index 0000000..d5aad91
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diff --git a/ft_putchar_fd.o b/ft_putchar_fd.o
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index 0000000..371817e
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diff --git a/ft_putnbr_fd.o b/ft_putnbr_fd.o
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index 0000000..4a33633
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diff --git a/ft_putstr_fd.o b/ft_putstr_fd.o
new file mode 100644
index 0000000..afc7299
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diff --git a/ft_strdup.c b/ft_strdup.c
new file mode 100644
index 0000000..9c194cf
--- /dev/null
+++ b/ft_strdup.c
@@ -0,0 +1,33 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ft_strdup.c                                        :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2023/11/03 22:57:39 by adjoly            #+#    #+#             */
+/*   Updated: 2023/11/03 23:08:23 by adjoly           ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libft.h"
+
+char	*ft_strdup(const char *s)
+{
+	int		i;
+	char	*result;
+	int		len;
+
+	i = 0;
+	len = ft_strlen(s);
+	result = malloc(sizeof(char) * len);
+	if (result == NULL)
+		return (NULL);
+	while (s[i])
+	{
+		result[i] = s[i];
+		i++;
+	}
+	result[i] = '\0';
+	return (result);
+}
diff --git a/ft_strdup.o b/ft_strdup.o
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index 0000000..84dbba1
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diff --git a/ft_strlcpy.o b/ft_strlcpy.o
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index 0000000..8554cc0
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diff --git a/ft_strlen.o b/ft_strlen.o
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index 0000000..2c20529
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diff --git a/ft_substr.o b/ft_substr.o
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index 0000000..bfe6c07
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diff --git a/ft_tolower.o b/ft_tolower.o
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index 0000000..39f8ee2
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diff --git a/ft_toupper.o b/ft_toupper.o
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index 0000000..9f0e61d
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diff --git a/libft.a b/libft.a
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diff --git a/libft.h b/libft.h
index 233bd10..66100c7 100644
--- a/libft.h
+++ b/libft.h
@@ -6,7 +6,7 @@
 /*   By: adjoly <adjoly@student.42.fr>              +#+  +:+       +#+        */
 /*                                                +#+#+#+#+#+   +#+           */
 /*   Created: 2023/11/01 10:06:03 by adjoly            #+#    #+#             */
-/*   Updated: 2023/11/03 15:57:10 by adjoly           ###   ########.fr       */
+/*   Updated: 2023/11/03 23:06:30 by adjoly           ###   ########.fr       */
 /*                                                                            */
 /* ************************************************************************** */
 
@@ -29,6 +29,7 @@ void	*ft_memmove(void *dest, const void *src, size_t n);
 void	*ft_memcpy(void *dest, const void *src, size_t n);
 void	ft_putchar_fd(char c, int fd);
 void	ft_putnbr_fd(int n, int fd);
+char	*ft_strdup(const char *s);
 void	ft_putstr_fd(char *s, int fd);
 char	*ft_strchr(const char *s, int c);
 size_t	ft_strlcpy(char	*dst, const char	*src, size_t	size);