diff --git a/hdrs/libft.h b/hdrs/libft.h
index 696caf1..c9f6803 100644
--- a/hdrs/libft.h
+++ b/hdrs/libft.h
@@ -3,6 +3,12 @@
 
 # include <stdlib.h>
 
+typedef struct s_string
+{
+    size_t len;
+    char *data;
+} t_string;
+
 int     ft_strcmp(const char *s1, const char *s2);
 size_t  ft_strlen(const char *s);
 int     ft_putstr(const char *s);