IDE does not recognize inet_pton

Question

I am trying to write a simple-ish TCP client in C++. I was following this guide and this is the short code I have so far:

main.cpp:

#include "messenger.h"
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0600
#endif
#include <winsock2.h>

#pragma comment (lib, "Ws2_32.lib")

int main()
{
    WSADATA d;
    if (WSAStartup(MAKEWORD(2, 2), &d)) {
        perror("Failed to initialize.\n");
    }

    Messenger::connect();

    WSACleanup();
    return 0;
}

`messenger.h':

class Messenger {
public:
    static void connect();
...
}

and messenger.cpp:

#include "messenger.h"
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <unistd.h>
#include <winsock2.h>
#include <wspiapi.h>
#include <Ws2tcpip.h>
#pragma comment(lib, "ws2_32.lib")

using namespace std::chrono_literals;

#define IP "192.168.0.99"
#define PORT 3030

SOCKET prop_socket = INVALID_SOCKET;

std::thread Messenger::receive_thread;

void Messenger::connect() {
    setup();
    receive_thread = std::thread{listen_for_messages};
}


void PropulsionMessenger::setup() {

    std::string ipAddress = IP;

    sockaddr_in hint;
    ZeroMemory( &hint, sizeof(hint) );

    hint.sin_family = AF_INET;
    hint.sin_port = htons(PORT);
    inet_pton(AF_INET, ipAddress.c_str(), &hint.sin_addr);

}

...

However CLion highlights inet_pton and tells me that Use of undeclared identifier 'inet_pton'. I believe all of the fields are filled with the correct data types and I have all of the required header files. I get no other errors.