diff --git a/d00/ex01/PhoneBook.class.cpp b/d00/ex01/PhoneBook.class.cpp
index b2712ea..01fbd46 100644
--- a/d00/ex01/PhoneBook.class.cpp
+++ b/d00/ex01/PhoneBook.class.cpp
@@ -133,7 +133,7 @@ void PhoneBook::search_contact() {
 		if (!std::getline(std::cin, index))
 			return;
 		id = std::strtol(index.c_str(), &ret, 10);
-		if (*ret || id < 0 || id > this->_contact_count - 1 || id > 7)
+		if (*ret || index.empty() || id < 0 || id > _contact_count - 1 || id > 7)
 			std::cout << B_RED "sorry, not a valid index" RESET << std::endl;
 		else
 			break;
diff --git a/d00/ex01/phonebook b/d00/ex01/phonebook
new file mode 100755
index 0000000..1fad1cd
Binary files /dev/null and b/d00/ex01/phonebook differ