Enter at numpad side does not have effect in terminal

Trying to sent input to STDIN with a press on the enter button located at the numpad has no effect in the qtcreator terminal. Try to submit a string inside the qtcreator terminal by pushing the mentioned enter button and it will not be recognized.

#include <iostream>
#include <string>int main(int argc, char *argv[])
{
    std::string s;
    std::cout << "Enter something: ";
    std::cin >> s;
    std::cout << "You entered: " << s << std::endl;
    return 0;
}